Action not permitted
Modal body text goes here.
Modal Title
Modal Body
oesa-2025-1871
Vulnerability from osv_openeuler
Published
2025-07-18 11:08
Modified
2026-08-06 11:08
Summary
kernel security update
Details
The Linux Kernel, the operating system core itself.
Security Fix(es):
Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. There is a security vulnerability in Linux kernel, which originates from a qlen count error in sch_hfsc, which may cause inconsistent queue statistics.(CVE-2025-38000)
In the Linux kernel, the following vulnerability has been resolved:
media: cxusb: no longer judge rbuf when the write fails
syzbot reported a uninit-value in cxusb_i2c_xfer. [1]
Only when the write operation of usb_bulk_msg() in dvb_usb_generic_rw() succeeds and rlen is greater than 0, the read operation of usb_bulk_msg() will be executed to read rlen bytes of data from the dvb device into the rbuf.
In this case, although rlen is 1, the write operation failed which resulted in the dvb read operation not being executed, and ultimately variable i was not initialized.
[1] BUG: KMSAN: uninit-value in cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline] BUG: KMSAN: uninit-value in cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196 cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline] cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196 __i2c_transfer+0xe25/0x3150 drivers/i2c/i2c-core-base.c:-1 i2c_transfer+0x317/0x4a0 drivers/i2c/i2c-core-base.c:2315 i2c_transfer_buffer_flags+0x125/0x1e0 drivers/i2c/i2c-core-base.c:2343 i2c_master_send include/linux/i2c.h:109 [inline] i2cdev_write+0x210/0x280 drivers/i2c/i2c-dev.c:183 do_loop_readv_writev fs/read_write.c:848 [inline] vfs_writev+0x963/0x14e0 fs/read_write.c:1057 do_writev+0x247/0x5c0 fs/read_write.c:1101 __do_sys_writev fs/read_write.c:1169 [inline] __se_sys_writev fs/read_write.c:1166 [inline] __x64_sys_writev+0x98/0xe0 fs/read_write.c:1166 x64_sys_call+0x2229/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:21 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2025-38229)
A vulnerability has been found in Linux Kernel up to 6.15.2 (Operating System) and classified as critical.The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).As an impact it is known to affect confidentiality, integrity, and availability.Upgrading to version 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3 or 6.16-rc1 eliminates this vulnerability. Applying the patch 44ebe361abb322d2afd77930fa767a99f271c4d1/147ea936fc6fa8fe0c93f0df918803a5375ca535/ee90be48edb3dac612e0b7f5332482a9e8be2696/e167414beabb1e941fe563a96becc98627d5bdf6/6d8f39875a10a194051c3eaefebc7ac06a34aaf3/c98cdf6795a36bca163ebb40411fef1687b9eb13/18e8cbbae79cb35bdce8a01c889827b9799c762e/3880cdbed1c4607e378f58fa924c5d6df900d1d3 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-38285)
A vulnerability was found in Linux Kernel up to 6.16-rc2 (Operating System). It has been declared as problematic.The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer.As an impact it is known to affect confidentiality.Upgrading to version 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4 or 6.16-rc3 eliminates this vulnerability. Applying the patch 64773b3ea09235168a549a195cba43bb867c4a17/67abac27d806e8f9d4226ec1528540cf73af673a/92750bfe7b0d8dbcaf578c091a65eda1c5f9ad38/01f91d415a8375d85e0c7d3615cd4a168308bb7c/21da6d3561f373898349ca7167c9811c020da695/22f935bc86bdfbde04009f05eee191d220cd8c89/422e565b7889ebfd9c8705a3fc786642afe61fca/39dfc971e42d886e7df01371cd1bef505076d84c is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-20926).(CVE-2025-38320)
A vulnerability was found in Linux Kernel up to 6.15.3 (Operating System). It has been declared as critical.The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.As an impact it is known to affect confidentiality, integrity, and availability.Upgrading to version 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4 or 6.16-rc1 eliminates this vulnerability. Applying the patch d064c68781c19f378af1ae741d9132d35d24b2bb/8690cd3258455bbae64f809e1d3ee0f043661c71/6805582abb720681dd1c87ff677f155dcf4e86c9/03a162933c4a03b9f1a84f7d8482903c7e1e11bb/83a692a9792aa86249d68a8ac0b9d55ecdd255fa/8e89c17dc8970c5f71a3a991f5724d4c8de42d8c/f78a786ad9a5443a29eef4dae60cde85b7375129/f914b52c379c12288b7623bb814d0508dbe7481d is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-38346)
Severity
7.0 (High)
References
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"bpftool-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"bpftool-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"kernel-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"kernel-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"kernel-debugsource-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"kernel-devel-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"kernel-source-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"kernel-tools-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"kernel-tools-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"kernel-tools-devel-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"perf-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"perf-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"python2-perf-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"python2-perf-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"python3-perf-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm",
"python3-perf-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.aarch64.rpm"
],
"src": [
"kernel-4.19.90-2507.3.0.0336.oe2003sp4.src.rpm"
],
"x86_64": [
"bpftool-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"bpftool-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"kernel-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"kernel-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"kernel-debugsource-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"kernel-devel-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"kernel-source-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"kernel-tools-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"kernel-tools-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"kernel-tools-devel-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"perf-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"perf-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"python2-perf-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"python2-perf-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"python3-perf-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm",
"python3-perf-debuginfo-4.19.90-2507.3.0.0336.oe2003sp4.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP4",
"name": "kernel",
"purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-20.03-LTS-SP4"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.19.90-2507.3.0.0336.oe2003sp4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "High"
},
"details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\n\nLinux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States.\n There is a security vulnerability in Linux kernel, which originates from a qlen count error in sch_hfsc, which may cause inconsistent queue statistics.(CVE-2025-38000)\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cxusb: no longer judge rbuf when the write fails\n\nsyzbot reported a uninit-value in cxusb_i2c_xfer. [1]\n\nOnly when the write operation of usb_bulk_msg() in dvb_usb_generic_rw()\nsucceeds and rlen is greater than 0, the read operation of usb_bulk_msg()\nwill be executed to read rlen bytes of data from the dvb device into the\nrbuf.\n\nIn this case, although rlen is 1, the write operation failed which resulted\nin the dvb read operation not being executed, and ultimately variable i was\nnot initialized.\n\n[1]\nBUG: KMSAN: uninit-value in cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline]\nBUG: KMSAN: uninit-value in cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196\n cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline]\n cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196\n __i2c_transfer+0xe25/0x3150 drivers/i2c/i2c-core-base.c:-1\n i2c_transfer+0x317/0x4a0 drivers/i2c/i2c-core-base.c:2315\n i2c_transfer_buffer_flags+0x125/0x1e0 drivers/i2c/i2c-core-base.c:2343\n i2c_master_send include/linux/i2c.h:109 [inline]\n i2cdev_write+0x210/0x280 drivers/i2c/i2c-dev.c:183\n do_loop_readv_writev fs/read_write.c:848 [inline]\n vfs_writev+0x963/0x14e0 fs/read_write.c:1057\n do_writev+0x247/0x5c0 fs/read_write.c:1101\n __do_sys_writev fs/read_write.c:1169 [inline]\n __se_sys_writev fs/read_write.c:1166 [inline]\n __x64_sys_writev+0x98/0xe0 fs/read_write.c:1166\n x64_sys_call+0x2229/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:21\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xcd/0x1e0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f(CVE-2025-38229)\n\nA vulnerability has been found in Linux Kernel up to 6.15.2 (Operating System) and classified as critical.The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).As an impact it is known to affect confidentiality, integrity, and availability.Upgrading to version 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3 or 6.16-rc1 eliminates this vulnerability. Applying the patch 44ebe361abb322d2afd77930fa767a99f271c4d1/147ea936fc6fa8fe0c93f0df918803a5375ca535/ee90be48edb3dac612e0b7f5332482a9e8be2696/e167414beabb1e941fe563a96becc98627d5bdf6/6d8f39875a10a194051c3eaefebc7ac06a34aaf3/c98cdf6795a36bca163ebb40411fef1687b9eb13/18e8cbbae79cb35bdce8a01c889827b9799c762e/3880cdbed1c4607e378f58fa924c5d6df900d1d3 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-38285)\n\nA vulnerability was found in Linux Kernel up to 6.16-rc2 (Operating System). It has been declared as problematic.The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer.As an impact it is known to affect confidentiality.Upgrading to version 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4 or 6.16-rc3 eliminates this vulnerability. Applying the patch 64773b3ea09235168a549a195cba43bb867c4a17/67abac27d806e8f9d4226ec1528540cf73af673a/92750bfe7b0d8dbcaf578c091a65eda1c5f9ad38/01f91d415a8375d85e0c7d3615cd4a168308bb7c/21da6d3561f373898349ca7167c9811c020da695/22f935bc86bdfbde04009f05eee191d220cd8c89/422e565b7889ebfd9c8705a3fc786642afe61fca/39dfc971e42d886e7df01371cd1bef505076d84c is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-20926).(CVE-2025-38320)\n\nA vulnerability was found in Linux Kernel up to 6.15.3 (Operating System). It has been declared as critical.The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.As an impact it is known to affect confidentiality, integrity, and availability.Upgrading to version 5.4.295, 5.10.239, 5.15.186, 6.1.142, 6.6.95, 6.12.35, 6.15.4 or 6.16-rc1 eliminates this vulnerability. Applying the patch d064c68781c19f378af1ae741d9132d35d24b2bb/8690cd3258455bbae64f809e1d3ee0f043661c71/6805582abb720681dd1c87ff677f155dcf4e86c9/03a162933c4a03b9f1a84f7d8482903c7e1e11bb/83a692a9792aa86249d68a8ac0b9d55ecdd255fa/8e89c17dc8970c5f71a3a991f5724d4c8de42d8c/f78a786ad9a5443a29eef4dae60cde85b7375129/f914b52c379c12288b7623bb814d0508dbe7481d is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.(CVE-2025-38346)",
"id": "OESA-2025-1871",
"modified": "2026-08-06T11:08:57Z",
"published": "2025-07-18T11:08:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1871"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38000"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38229"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38285"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38320"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38346"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "kernel security update",
"upstream": [
"CVE-2025-38000",
"CVE-2025-38229",
"CVE-2025-38285",
"CVE-2025-38320",
"CVE-2025-38346"
]
}
CVE-2025-38000 (GCVE-0-2025-38000)
Vulnerability from cvelistv5 – Published: 2025-06-06 13:03 – Updated: 2026-08-05 11:58
VLAI
EPSS
VEX
Title
sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()
Summary
In the Linux kernel, the following vulnerability has been resolved:
sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()
When enqueuing the first packet to an HFSC class, hfsc_enqueue() calls the
child qdisc's peek() operation before incrementing sch->q.qlen and
sch->qstats.backlog. If the child qdisc uses qdisc_peek_dequeued(), this may
trigger an immediate dequeue and potential packet drop. In such cases,
qdisc_tree_reduce_backlog() is called, but the HFSC qdisc's qlen and backlog
have not yet been updated, leading to inconsistent queue accounting. This
can leave an empty HFSC class in the active list, causing further
consequences like use-after-free.
This patch fixes the bug by moving the increment of sch->q.qlen and
sch->qstats.backlog before the call to the child qdisc's peek() operation.
This ensures that queue length and backlog are always accurate when packet
drops or dequeues are triggered during the peek.
Severity
7.8 (High)
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/1034e3310752e8675… | |
| https://git.kernel.org/stable/c/f9f593e34d2fb6764… | |
| https://git.kernel.org/stable/c/89c301e929a0db14e… | |
| https://git.kernel.org/stable/c/f1dde3eb17dc1b8bd… | |
| https://git.kernel.org/stable/c/93c276942e75de0e5… | |
| https://git.kernel.org/stable/c/49b21795b8e5654a7… | |
| https://git.kernel.org/stable/c/3f3a22eebbc32b4fa… | |
| https://git.kernel.org/stable/c/3f981138109f63232… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
12d0ad3be9c3854e52ec74bb83bb6f43612827c7 , < 1034e3310752e8675e313f7271b348914008719a
(git)
Affected: 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 , < f9f593e34d2fb67644372c8f7b033bdc622ad228 (git) Affected: 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 , < 89c301e929a0db14ebd94b4d97764ce1d6981653 (git) Affected: 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 , < f1dde3eb17dc1b8bd07aed00004b1e05fc87a3d4 (git) Affected: 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 , < 93c276942e75de0e5bc91576300d292e968f5a02 (git) Affected: 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 , < 49b21795b8e5654a7df3d910a12e1060da4c04cf (git) Affected: 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 , < 3f3a22eebbc32b4fa8ce9c1d5f9db214b45b9335 (git) Affected: 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 , < 3f981138109f63232a5fb7165938d4c945cc1b9d (git) |
|
| Linux | Linux |
Affected:
4.8
Unaffected: 0 , < 4.8 (semver) Unaffected: 5.4.294 , ≤ 5.4.* (semver) Unaffected: 5.10.238 , ≤ 5.10.* (semver) Unaffected: 5.15.185 , ≤ 5.15.* (semver) Unaffected: 6.1.141 , ≤ 6.1.* (semver) Unaffected: 6.6.93 , ≤ 6.6.* (semver) Unaffected: 6.12.31 , ≤ 6.12.* (semver) Unaffected: 6.14.9 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-03T17:32:58.709Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/sched/sch_hfsc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "1034e3310752e8675e313f7271b348914008719a",
"status": "affected",
"version": "12d0ad3be9c3854e52ec74bb83bb6f43612827c7",
"versionType": "git"
},
{
"lessThan": "f9f593e34d2fb67644372c8f7b033bdc622ad228",
"status": "affected",
"version": "12d0ad3be9c3854e52ec74bb83bb6f43612827c7",
"versionType": "git"
},
{
"lessThan": "89c301e929a0db14ebd94b4d97764ce1d6981653",
"status": "affected",
"version": "12d0ad3be9c3854e52ec74bb83bb6f43612827c7",
"versionType": "git"
},
{
"lessThan": "f1dde3eb17dc1b8bd07aed00004b1e05fc87a3d4",
"status": "affected",
"version": "12d0ad3be9c3854e52ec74bb83bb6f43612827c7",
"versionType": "git"
},
{
"lessThan": "93c276942e75de0e5bc91576300d292e968f5a02",
"status": "affected",
"version": "12d0ad3be9c3854e52ec74bb83bb6f43612827c7",
"versionType": "git"
},
{
"lessThan": "49b21795b8e5654a7df3d910a12e1060da4c04cf",
"status": "affected",
"version": "12d0ad3be9c3854e52ec74bb83bb6f43612827c7",
"versionType": "git"
},
{
"lessThan": "3f3a22eebbc32b4fa8ce9c1d5f9db214b45b9335",
"status": "affected",
"version": "12d0ad3be9c3854e52ec74bb83bb6f43612827c7",
"versionType": "git"
},
{
"lessThan": "3f981138109f63232a5fb7165938d4c945cc1b9d",
"status": "affected",
"version": "12d0ad3be9c3854e52ec74bb83bb6f43612827c7",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/sched/sch_hfsc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.8"
},
{
"lessThan": "4.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.294",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.238",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.185",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.141",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.93",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.31",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.14.*",
"status": "unaffected",
"version": "6.14.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.294",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.238",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.185",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.141",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.93",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.31",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.14.9",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15",
"versionStartIncluding": "4.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()\n\nWhen enqueuing the first packet to an HFSC class, hfsc_enqueue() calls the\nchild qdisc\u0027s peek() operation before incrementing sch-\u003eq.qlen and\nsch-\u003eqstats.backlog. If the child qdisc uses qdisc_peek_dequeued(), this may\ntrigger an immediate dequeue and potential packet drop. In such cases,\nqdisc_tree_reduce_backlog() is called, but the HFSC qdisc\u0027s qlen and backlog\nhave not yet been updated, leading to inconsistent queue accounting. This\ncan leave an empty HFSC class in the active list, causing further\nconsequences like use-after-free.\n\nThis patch fixes the bug by moving the increment of sch-\u003eq.qlen and\nsch-\u003eqstats.backlog before the call to the child qdisc\u0027s peek() operation.\nThis ensures that queue length and backlog are always accurate when packet\ndrops or dequeues are triggered during the peek."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - Triggering requires configuring an HFSC qdisc with an RSC service curve and a peek-dequeueing child qdisc (netem/codel/fq_codel/tbf) via RTM_NEWQDISC/RTM_NEWTCLASS netlink, then transmitting a packet locally. Per kernel scoring guidance, tc/netlink qdisc configuration is a local attack vector.\nAC:L - The attacker fully controls both the qdisc hierarchy (hfsc + netem with an inner qdisc that rejects on enqueue) and the packet that drives hfsc_enqueue(), so the peek-time drop and the resulting qlen underflow are triggered deterministically with no race to win and no reliance on uncontrolled state.\nPR:L - Qdisc configuration is gated by netlink_net_capable(CAP_NET_ADMIN) against the netns owning user_ns, which any unprivileged user obtains via `unshare -Urn` and then applies to lo/dummy/veth inside the namespace. No real root in the init namespace is needed.\nUI:N - The attacker performs the qdisc setup and generates the triggering traffic entirely on their own; no victim action or interaction is required.\nS:U - The corruption is confined to kernel scheduler state in the same security authority; it is a standard local kernel privilege escalation with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The accounting inconsistency leaves a freed/empty hfsc_class linked in the eligible and vt-trees, and the commit explicitly states this leads to use-after-free; a UAF on a ~512-byte generic-kmalloc object with embedded rb_nodes yields a controlled read primitive over sprayed kernel objects.\nI:H - Dangling rb_node linkage of a freed hfsc_class means subsequent eltree/vttree insert, update, and rebalance operations write attacker-influenced values into reclaimed heap memory, giving a write primitive suitable for control-flow hijacking and privilege escalation.\nA:H - Even without full exploitation, the q.qlen/backlog underflow to 0xFFFFFFFF and the stale active-list entry cause use-after-free oopses, KASAN splats, and reported infinite loops in hfsc_dequeue(), crashing or hanging the machine."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:58:51.349Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/1034e3310752e8675e313f7271b348914008719a"
},
{
"url": "https://git.kernel.org/stable/c/f9f593e34d2fb67644372c8f7b033bdc622ad228"
},
{
"url": "https://git.kernel.org/stable/c/89c301e929a0db14ebd94b4d97764ce1d6981653"
},
{
"url": "https://git.kernel.org/stable/c/f1dde3eb17dc1b8bd07aed00004b1e05fc87a3d4"
},
{
"url": "https://git.kernel.org/stable/c/93c276942e75de0e5bc91576300d292e968f5a02"
},
{
"url": "https://git.kernel.org/stable/c/49b21795b8e5654a7df3d910a12e1060da4c04cf"
},
{
"url": "https://git.kernel.org/stable/c/3f3a22eebbc32b4fa8ce9c1d5f9db214b45b9335"
},
{
"url": "https://git.kernel.org/stable/c/3f981138109f63232a5fb7165938d4c945cc1b9d"
}
],
"title": "sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38000",
"datePublished": "2025-06-06T13:03:35.405Z",
"dateReserved": "2025-04-16T04:51:23.976Z",
"dateUpdated": "2026-08-05T11:58:51.349Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-38229 (GCVE-0-2025-38229)
Vulnerability from cvelistv5 – Published: 2025-07-04 13:37 – Updated: 2026-05-11 21:23
VLAI
EPSS
VEX
Title
media: cxusb: no longer judge rbuf when the write fails
Summary
In the Linux kernel, the following vulnerability has been resolved:
media: cxusb: no longer judge rbuf when the write fails
syzbot reported a uninit-value in cxusb_i2c_xfer. [1]
Only when the write operation of usb_bulk_msg() in dvb_usb_generic_rw()
succeeds and rlen is greater than 0, the read operation of usb_bulk_msg()
will be executed to read rlen bytes of data from the dvb device into the
rbuf.
In this case, although rlen is 1, the write operation failed which resulted
in the dvb read operation not being executed, and ultimately variable i was
not initialized.
[1]
BUG: KMSAN: uninit-value in cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline]
BUG: KMSAN: uninit-value in cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196
cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline]
cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196
__i2c_transfer+0xe25/0x3150 drivers/i2c/i2c-core-base.c:-1
i2c_transfer+0x317/0x4a0 drivers/i2c/i2c-core-base.c:2315
i2c_transfer_buffer_flags+0x125/0x1e0 drivers/i2c/i2c-core-base.c:2343
i2c_master_send include/linux/i2c.h:109 [inline]
i2cdev_write+0x210/0x280 drivers/i2c/i2c-dev.c:183
do_loop_readv_writev fs/read_write.c:848 [inline]
vfs_writev+0x963/0x14e0 fs/read_write.c:1057
do_writev+0x247/0x5c0 fs/read_write.c:1101
__do_sys_writev fs/read_write.c:1169 [inline]
__se_sys_writev fs/read_write.c:1166 [inline]
__x64_sys_writev+0x98/0xe0 fs/read_write.c:1166
x64_sys_call+0x2229/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:21
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x1e0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Severity
No CVSS data available.
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/77829a5f5a74026b8… | |
| https://git.kernel.org/stable/c/390b864e328180210… | |
| https://git.kernel.org/stable/c/41807a5f67420464a… | |
| https://git.kernel.org/stable/c/84eca597baa346f09… | |
| https://git.kernel.org/stable/c/04354c529c8246a38… | |
| https://git.kernel.org/stable/c/9bff888c92f5c25ef… | |
| https://git.kernel.org/stable/c/8b35b50b7e98d8e9a… | |
| https://git.kernel.org/stable/c/73fb3b92da84637e3… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
22c6d93a73105fddd58796d7cb10f5f90ee2a338 , < 77829a5f5a74026b888b0529628475b29750cef4
(git)
Affected: 22c6d93a73105fddd58796d7cb10f5f90ee2a338 , < 390b864e3281802109dfe56e508396683e125653 (git) Affected: 22c6d93a73105fddd58796d7cb10f5f90ee2a338 , < 41807a5f67420464ac8ee7741504f6b5decb3b7c (git) Affected: 22c6d93a73105fddd58796d7cb10f5f90ee2a338 , < 84eca597baa346f09b30accdaeca10ced3eeba2d (git) Affected: 22c6d93a73105fddd58796d7cb10f5f90ee2a338 , < 04354c529c8246a38ae28f713fd6bfdc028113bc (git) Affected: 22c6d93a73105fddd58796d7cb10f5f90ee2a338 , < 9bff888c92f5c25effbb876d22a793c2388c1ccc (git) Affected: 22c6d93a73105fddd58796d7cb10f5f90ee2a338 , < 8b35b50b7e98d8e9a0a27257c8424448afae10de (git) Affected: 22c6d93a73105fddd58796d7cb10f5f90ee2a338 , < 73fb3b92da84637e3817580fa205d48065924e15 (git) |
|
| Linux | Linux |
Affected:
2.6.13
Unaffected: 0 , < 2.6.13 (semver) Unaffected: 5.4.296 , ≤ 5.4.* (semver) Unaffected: 5.10.239 , ≤ 5.10.* (semver) Unaffected: 5.15.186 , ≤ 5.15.* (semver) Unaffected: 6.1.142 , ≤ 6.1.* (semver) Unaffected: 6.6.95 , ≤ 6.6.* (semver) Unaffected: 6.12.35 , ≤ 6.12.* (semver) Unaffected: 6.15.4 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-03T17:35:46.753Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/media/usb/dvb-usb/cxusb.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "77829a5f5a74026b888b0529628475b29750cef4",
"status": "affected",
"version": "22c6d93a73105fddd58796d7cb10f5f90ee2a338",
"versionType": "git"
},
{
"lessThan": "390b864e3281802109dfe56e508396683e125653",
"status": "affected",
"version": "22c6d93a73105fddd58796d7cb10f5f90ee2a338",
"versionType": "git"
},
{
"lessThan": "41807a5f67420464ac8ee7741504f6b5decb3b7c",
"status": "affected",
"version": "22c6d93a73105fddd58796d7cb10f5f90ee2a338",
"versionType": "git"
},
{
"lessThan": "84eca597baa346f09b30accdaeca10ced3eeba2d",
"status": "affected",
"version": "22c6d93a73105fddd58796d7cb10f5f90ee2a338",
"versionType": "git"
},
{
"lessThan": "04354c529c8246a38ae28f713fd6bfdc028113bc",
"status": "affected",
"version": "22c6d93a73105fddd58796d7cb10f5f90ee2a338",
"versionType": "git"
},
{
"lessThan": "9bff888c92f5c25effbb876d22a793c2388c1ccc",
"status": "affected",
"version": "22c6d93a73105fddd58796d7cb10f5f90ee2a338",
"versionType": "git"
},
{
"lessThan": "8b35b50b7e98d8e9a0a27257c8424448afae10de",
"status": "affected",
"version": "22c6d93a73105fddd58796d7cb10f5f90ee2a338",
"versionType": "git"
},
{
"lessThan": "73fb3b92da84637e3817580fa205d48065924e15",
"status": "affected",
"version": "22c6d93a73105fddd58796d7cb10f5f90ee2a338",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/media/usb/dvb-usb/cxusb.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.13"
},
{
"lessThan": "2.6.13",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.296",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.239",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.186",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.142",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.95",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.35",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.296",
"versionStartIncluding": "2.6.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.239",
"versionStartIncluding": "2.6.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.186",
"versionStartIncluding": "2.6.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.142",
"versionStartIncluding": "2.6.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.95",
"versionStartIncluding": "2.6.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.35",
"versionStartIncluding": "2.6.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.4",
"versionStartIncluding": "2.6.13",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "2.6.13",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cxusb: no longer judge rbuf when the write fails\n\nsyzbot reported a uninit-value in cxusb_i2c_xfer. [1]\n\nOnly when the write operation of usb_bulk_msg() in dvb_usb_generic_rw()\nsucceeds and rlen is greater than 0, the read operation of usb_bulk_msg()\nwill be executed to read rlen bytes of data from the dvb device into the\nrbuf.\n\nIn this case, although rlen is 1, the write operation failed which resulted\nin the dvb read operation not being executed, and ultimately variable i was\nnot initialized.\n\n[1]\nBUG: KMSAN: uninit-value in cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline]\nBUG: KMSAN: uninit-value in cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196\n cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline]\n cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196\n __i2c_transfer+0xe25/0x3150 drivers/i2c/i2c-core-base.c:-1\n i2c_transfer+0x317/0x4a0 drivers/i2c/i2c-core-base.c:2315\n i2c_transfer_buffer_flags+0x125/0x1e0 drivers/i2c/i2c-core-base.c:2343\n i2c_master_send include/linux/i2c.h:109 [inline]\n i2cdev_write+0x210/0x280 drivers/i2c/i2c-dev.c:183\n do_loop_readv_writev fs/read_write.c:848 [inline]\n vfs_writev+0x963/0x14e0 fs/read_write.c:1057\n do_writev+0x247/0x5c0 fs/read_write.c:1101\n __do_sys_writev fs/read_write.c:1169 [inline]\n __se_sys_writev fs/read_write.c:1166 [inline]\n __x64_sys_writev+0x98/0xe0 fs/read_write.c:1166\n x64_sys_call+0x2229/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:21\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xcd/0x1e0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:23:44.237Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/77829a5f5a74026b888b0529628475b29750cef4"
},
{
"url": "https://git.kernel.org/stable/c/390b864e3281802109dfe56e508396683e125653"
},
{
"url": "https://git.kernel.org/stable/c/41807a5f67420464ac8ee7741504f6b5decb3b7c"
},
{
"url": "https://git.kernel.org/stable/c/84eca597baa346f09b30accdaeca10ced3eeba2d"
},
{
"url": "https://git.kernel.org/stable/c/04354c529c8246a38ae28f713fd6bfdc028113bc"
},
{
"url": "https://git.kernel.org/stable/c/9bff888c92f5c25effbb876d22a793c2388c1ccc"
},
{
"url": "https://git.kernel.org/stable/c/8b35b50b7e98d8e9a0a27257c8424448afae10de"
},
{
"url": "https://git.kernel.org/stable/c/73fb3b92da84637e3817580fa205d48065924e15"
}
],
"title": "media: cxusb: no longer judge rbuf when the write fails",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38229",
"datePublished": "2025-07-04T13:37:43.321Z",
"dateReserved": "2025-04-16T04:51:23.996Z",
"dateUpdated": "2026-05-11T21:23:44.237Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-38285 (GCVE-0-2025-38285)
Vulnerability from cvelistv5 – Published: 2025-07-10 07:42 – Updated: 2026-07-14 12:41
VLAI
EPSS
VEX
Title
bpf: Fix WARN() in get_bpf_raw_tp_regs
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix WARN() in get_bpf_raw_tp_regs
syzkaller reported an issue:
WARNING: CPU: 3 PID: 5971 at kernel/trace/bpf_trace.c:1861 get_bpf_raw_tp_regs+0xa4/0x100 kernel/trace/bpf_trace.c:1861
Modules linked in:
CPU: 3 UID: 0 PID: 5971 Comm: syz-executor205 Not tainted 6.15.0-rc5-syzkaller-00038-g707df3375124 #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:get_bpf_raw_tp_regs+0xa4/0x100 kernel/trace/bpf_trace.c:1861
RSP: 0018:ffffc90003636fa8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff81c6bc4c
RDX: ffff888032efc880 RSI: ffffffff81c6bc83 RDI: 0000000000000005
RBP: ffff88806a730860 R08: 0000000000000005 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000004
R13: 0000000000000001 R14: ffffc90003637008 R15: 0000000000000900
FS: 0000000000000000(0000) GS:ffff8880d6cdf000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7baee09130 CR3: 0000000029f5a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1934 [inline]
bpf_get_stack_raw_tp+0x24/0x160 kernel/trace/bpf_trace.c:1931
bpf_prog_ec3b2eefa702d8d3+0x43/0x47
bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline]
__bpf_prog_run include/linux/filter.h:718 [inline]
bpf_prog_run include/linux/filter.h:725 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2363 [inline]
bpf_trace_run3+0x23f/0x5a0 kernel/trace/bpf_trace.c:2405
__bpf_trace_mmap_lock_acquire_returned+0xfc/0x140 include/trace/events/mmap_lock.h:47
__traceiter_mmap_lock_acquire_returned+0x79/0xc0 include/trace/events/mmap_lock.h:47
__do_trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline]
trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline]
__mmap_lock_do_trace_acquire_returned+0x138/0x1f0 mm/mmap_lock.c:35
__mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
mmap_read_trylock include/linux/mmap_lock.h:204 [inline]
stack_map_get_build_id_offset+0x535/0x6f0 kernel/bpf/stackmap.c:157
__bpf_get_stack+0x307/0xa10 kernel/bpf/stackmap.c:483
____bpf_get_stack kernel/bpf/stackmap.c:499 [inline]
bpf_get_stack+0x32/0x40 kernel/bpf/stackmap.c:496
____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1941 [inline]
bpf_get_stack_raw_tp+0x124/0x160 kernel/trace/bpf_trace.c:1931
bpf_prog_ec3b2eefa702d8d3+0x43/0x47
Tracepoint like trace_mmap_lock_acquire_returned may cause nested call
as the corner case show above, which will be resolved with more general
method in the future. As a result, WARN_ON_ONCE will be triggered. As
Alexei suggested, remove the WARN_ON_ONCE first.
Severity
No CVSS data available.
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/44ebe361abb322d2a… | |
| https://git.kernel.org/stable/c/147ea936fc6fa8fe0… | |
| https://git.kernel.org/stable/c/ee90be48edb3dac61… | |
| https://git.kernel.org/stable/c/e167414beabb1e941… | |
| https://git.kernel.org/stable/c/6d8f39875a10a1940… | |
| https://git.kernel.org/stable/c/c98cdf6795a36bca1… | |
| https://git.kernel.org/stable/c/18e8cbbae79cb35bd… | |
| https://git.kernel.org/stable/c/3880cdbed1c4607e3… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99 , < 44ebe361abb322d2afd77930fa767a99f271c4d1
(git)
Affected: 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99 , < 147ea936fc6fa8fe0c93f0df918803a5375ca535 (git) Affected: 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99 , < ee90be48edb3dac612e0b7f5332482a9e8be2696 (git) Affected: 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99 , < e167414beabb1e941fe563a96becc98627d5bdf6 (git) Affected: 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99 , < 6d8f39875a10a194051c3eaefebc7ac06a34aaf3 (git) Affected: 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99 , < c98cdf6795a36bca163ebb40411fef1687b9eb13 (git) Affected: 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99 , < 18e8cbbae79cb35bdce8a01c889827b9799c762e (git) Affected: 9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99 , < 3880cdbed1c4607e378f58fa924c5d6df900d1d3 (git) Affected: a7177b94aff4febe657fe31bb7e5ecdef72079f4 (git) Affected: 2a9fedc1ef4be2acb4fd4674f405c21c811e1505 (git) Affected: 4.19.57 , < 4.20 (semver) Affected: 5.1.16 , < 5.2 (semver) |
|
| Linux | Linux |
Affected:
5.2
Unaffected: 0 , < 5.2 (semver) Unaffected: 5.4.295 , ≤ 5.4.* (semver) Unaffected: 5.10.239 , ≤ 5.10.* (semver) Unaffected: 5.15.186 , ≤ 5.15.* (semver) Unaffected: 6.1.142 , ≤ 6.1.* (semver) Unaffected: 6.6.94 , ≤ 6.6.* (semver) Unaffected: 6.12.34 , ≤ 6.12.* (semver) Unaffected: 6.15.3 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-03T17:36:13.749Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.5",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.5",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.5",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.5",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "V3.1.5",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T12:41:50.803Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"kernel/trace/bpf_trace.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "44ebe361abb322d2afd77930fa767a99f271c4d1",
"status": "affected",
"version": "9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99",
"versionType": "git"
},
{
"lessThan": "147ea936fc6fa8fe0c93f0df918803a5375ca535",
"status": "affected",
"version": "9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99",
"versionType": "git"
},
{
"lessThan": "ee90be48edb3dac612e0b7f5332482a9e8be2696",
"status": "affected",
"version": "9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99",
"versionType": "git"
},
{
"lessThan": "e167414beabb1e941fe563a96becc98627d5bdf6",
"status": "affected",
"version": "9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99",
"versionType": "git"
},
{
"lessThan": "6d8f39875a10a194051c3eaefebc7ac06a34aaf3",
"status": "affected",
"version": "9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99",
"versionType": "git"
},
{
"lessThan": "c98cdf6795a36bca163ebb40411fef1687b9eb13",
"status": "affected",
"version": "9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99",
"versionType": "git"
},
{
"lessThan": "18e8cbbae79cb35bdce8a01c889827b9799c762e",
"status": "affected",
"version": "9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99",
"versionType": "git"
},
{
"lessThan": "3880cdbed1c4607e378f58fa924c5d6df900d1d3",
"status": "affected",
"version": "9594dc3c7e71b9f52bee1d7852eb3d4e3aea9e99",
"versionType": "git"
},
{
"status": "affected",
"version": "a7177b94aff4febe657fe31bb7e5ecdef72079f4",
"versionType": "git"
},
{
"status": "affected",
"version": "2a9fedc1ef4be2acb4fd4674f405c21c811e1505",
"versionType": "git"
},
{
"lessThan": "4.20",
"status": "affected",
"version": "4.19.57",
"versionType": "semver"
},
{
"lessThan": "5.2",
"status": "affected",
"version": "5.1.16",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"kernel/trace/bpf_trace.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.2"
},
{
"lessThan": "5.2",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.295",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.239",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.186",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.142",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.94",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.34",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.295",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.239",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.186",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.142",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.94",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.34",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.3",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "5.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.19.57",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.1.16",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix WARN() in get_bpf_raw_tp_regs\n\nsyzkaller reported an issue:\n\nWARNING: CPU: 3 PID: 5971 at kernel/trace/bpf_trace.c:1861 get_bpf_raw_tp_regs+0xa4/0x100 kernel/trace/bpf_trace.c:1861\nModules linked in:\nCPU: 3 UID: 0 PID: 5971 Comm: syz-executor205 Not tainted 6.15.0-rc5-syzkaller-00038-g707df3375124 #0 PREEMPT(full)\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\nRIP: 0010:get_bpf_raw_tp_regs+0xa4/0x100 kernel/trace/bpf_trace.c:1861\nRSP: 0018:ffffc90003636fa8 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff81c6bc4c\nRDX: ffff888032efc880 RSI: ffffffff81c6bc83 RDI: 0000000000000005\nRBP: ffff88806a730860 R08: 0000000000000005 R09: 0000000000000003\nR10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000004\nR13: 0000000000000001 R14: ffffc90003637008 R15: 0000000000000900\nFS: 0000000000000000(0000) GS:ffff8880d6cdf000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f7baee09130 CR3: 0000000029f5a000 CR4: 0000000000352ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1934 [inline]\n bpf_get_stack_raw_tp+0x24/0x160 kernel/trace/bpf_trace.c:1931\n bpf_prog_ec3b2eefa702d8d3+0x43/0x47\n bpf_dispatcher_nop_func include/linux/bpf.h:1316 [inline]\n __bpf_prog_run include/linux/filter.h:718 [inline]\n bpf_prog_run include/linux/filter.h:725 [inline]\n __bpf_trace_run kernel/trace/bpf_trace.c:2363 [inline]\n bpf_trace_run3+0x23f/0x5a0 kernel/trace/bpf_trace.c:2405\n __bpf_trace_mmap_lock_acquire_returned+0xfc/0x140 include/trace/events/mmap_lock.h:47\n __traceiter_mmap_lock_acquire_returned+0x79/0xc0 include/trace/events/mmap_lock.h:47\n __do_trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline]\n trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:47 [inline]\n __mmap_lock_do_trace_acquire_returned+0x138/0x1f0 mm/mmap_lock.c:35\n __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]\n mmap_read_trylock include/linux/mmap_lock.h:204 [inline]\n stack_map_get_build_id_offset+0x535/0x6f0 kernel/bpf/stackmap.c:157\n __bpf_get_stack+0x307/0xa10 kernel/bpf/stackmap.c:483\n ____bpf_get_stack kernel/bpf/stackmap.c:499 [inline]\n bpf_get_stack+0x32/0x40 kernel/bpf/stackmap.c:496\n ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1941 [inline]\n bpf_get_stack_raw_tp+0x124/0x160 kernel/trace/bpf_trace.c:1931\n bpf_prog_ec3b2eefa702d8d3+0x43/0x47\n\nTracepoint like trace_mmap_lock_acquire_returned may cause nested call\nas the corner case show above, which will be resolved with more general\nmethod in the future. As a result, WARN_ON_ONCE will be triggered. As\nAlexei suggested, remove the WARN_ON_ONCE first."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-23T15:59:23.530Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/44ebe361abb322d2afd77930fa767a99f271c4d1"
},
{
"url": "https://git.kernel.org/stable/c/147ea936fc6fa8fe0c93f0df918803a5375ca535"
},
{
"url": "https://git.kernel.org/stable/c/ee90be48edb3dac612e0b7f5332482a9e8be2696"
},
{
"url": "https://git.kernel.org/stable/c/e167414beabb1e941fe563a96becc98627d5bdf6"
},
{
"url": "https://git.kernel.org/stable/c/6d8f39875a10a194051c3eaefebc7ac06a34aaf3"
},
{
"url": "https://git.kernel.org/stable/c/c98cdf6795a36bca163ebb40411fef1687b9eb13"
},
{
"url": "https://git.kernel.org/stable/c/18e8cbbae79cb35bdce8a01c889827b9799c762e"
},
{
"url": "https://git.kernel.org/stable/c/3880cdbed1c4607e378f58fa924c5d6df900d1d3"
}
],
"title": "bpf: Fix WARN() in get_bpf_raw_tp_regs",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38285",
"datePublished": "2025-07-10T07:42:02.741Z",
"dateReserved": "2025-04-16T04:51:24.000Z",
"dateUpdated": "2026-07-14T12:41:50.803Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-38320 (GCVE-0-2025-38320)
Vulnerability from cvelistv5 – Published: 2025-07-10 08:14 – Updated: 2026-05-11 21:25
VLAI
EPSS
VEX
Title
arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()
Summary
In the Linux kernel, the following vulnerability has been resolved:
arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()
KASAN reports a stack-out-of-bounds read in regs_get_kernel_stack_nth().
Call Trace:
[ 97.283505] BUG: KASAN: stack-out-of-bounds in regs_get_kernel_stack_nth+0xa8/0xc8
[ 97.284677] Read of size 8 at addr ffff800089277c10 by task 1.sh/2550
[ 97.285732]
[ 97.286067] CPU: 7 PID: 2550 Comm: 1.sh Not tainted 6.6.0+ #11
[ 97.287032] Hardware name: linux,dummy-virt (DT)
[ 97.287815] Call trace:
[ 97.288279] dump_backtrace+0xa0/0x128
[ 97.288946] show_stack+0x20/0x38
[ 97.289551] dump_stack_lvl+0x78/0xc8
[ 97.290203] print_address_description.constprop.0+0x84/0x3c8
[ 97.291159] print_report+0xb0/0x280
[ 97.291792] kasan_report+0x84/0xd0
[ 97.292421] __asan_load8+0x9c/0xc0
[ 97.293042] regs_get_kernel_stack_nth+0xa8/0xc8
[ 97.293835] process_fetch_insn+0x770/0xa30
[ 97.294562] kprobe_trace_func+0x254/0x3b0
[ 97.295271] kprobe_dispatcher+0x98/0xe0
[ 97.295955] kprobe_breakpoint_handler+0x1b0/0x210
[ 97.296774] call_break_hook+0xc4/0x100
[ 97.297451] brk_handler+0x24/0x78
[ 97.298073] do_debug_exception+0xac/0x178
[ 97.298785] el1_dbg+0x70/0x90
[ 97.299344] el1h_64_sync_handler+0xcc/0xe8
[ 97.300066] el1h_64_sync+0x78/0x80
[ 97.300699] kernel_clone+0x0/0x500
[ 97.301331] __arm64_sys_clone+0x70/0x90
[ 97.302084] invoke_syscall+0x68/0x198
[ 97.302746] el0_svc_common.constprop.0+0x11c/0x150
[ 97.303569] do_el0_svc+0x38/0x50
[ 97.304164] el0_svc+0x44/0x1d8
[ 97.304749] el0t_64_sync_handler+0x100/0x130
[ 97.305500] el0t_64_sync+0x188/0x190
[ 97.306151]
[ 97.306475] The buggy address belongs to stack of task 1.sh/2550
[ 97.307461] and is located at offset 0 in frame:
[ 97.308257] __se_sys_clone+0x0/0x138
[ 97.308910]
[ 97.309241] This frame has 1 object:
[ 97.309873] [48, 184) 'args'
[ 97.309876]
[ 97.310749] The buggy address belongs to the virtual mapping at
[ 97.310749] [ffff800089270000, ffff800089279000) created by:
[ 97.310749] dup_task_struct+0xc0/0x2e8
[ 97.313347]
[ 97.313674] The buggy address belongs to the physical page:
[ 97.314604] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14f69a
[ 97.315885] flags: 0x15ffffe00000000(node=1|zone=2|lastcpupid=0xfffff)
[ 97.316957] raw: 015ffffe00000000 0000000000000000 dead000000000122 0000000000000000
[ 97.318207] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[ 97.319445] page dumped because: kasan: bad access detected
[ 97.320371]
[ 97.320694] Memory state around the buggy address:
[ 97.321511] ffff800089277b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 97.322681] ffff800089277b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 97.323846] >ffff800089277c00: 00 00 f1 f1 f1 f1 f1 f1 00 00 00 00 00 00 00 00
[ 97.325023] ^
[ 97.325683] ffff800089277c80: 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 f3 f3
[ 97.326856] ffff800089277d00: f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00
This issue seems to be related to the behavior of some gcc compilers and
was also fixed on the s390 architecture before:
commit d93a855c31b7 ("s390/ptrace: Avoid KASAN false positives in regs_get_kernel_stack_nth()")
As described in that commit, regs_get_kernel_stack_nth() has confirmed that
`addr` is on the stack, so reading the value at `*addr` should be allowed.
Use READ_ONCE_NOCHECK() helper to silence the KASAN check for this case.
[will: Use '*addr' as the argument to READ_ONCE_NOCHECK()]
Severity
No CVSS data available.
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/64773b3ea09235168… | |
| https://git.kernel.org/stable/c/67abac27d806e8f9d… | |
| https://git.kernel.org/stable/c/92750bfe7b0d8dbca… | |
| https://git.kernel.org/stable/c/01f91d415a8375d85… | |
| https://git.kernel.org/stable/c/21da6d3561f373898… | |
| https://git.kernel.org/stable/c/22f935bc86bdfbde0… | |
| https://git.kernel.org/stable/c/422e565b7889ebfd9… | |
| https://git.kernel.org/stable/c/39dfc971e42d886e7… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 64773b3ea09235168a549a195cba43bb867c4a17
(git)
Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 67abac27d806e8f9d4226ec1528540cf73af673a (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 92750bfe7b0d8dbcaf578c091a65eda1c5f9ad38 (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 01f91d415a8375d85e0c7d3615cd4a168308bb7c (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 21da6d3561f373898349ca7167c9811c020da695 (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 22f935bc86bdfbde04009f05eee191d220cd8c89 (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 422e565b7889ebfd9c8705a3fc786642afe61fca (git) Affected: 0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7 , < 39dfc971e42d886e7df01371cd1bef505076d84c (git) |
|
| Linux | Linux |
Affected:
4.8
Unaffected: 0 , < 4.8 (semver) Unaffected: 5.4.295 , ≤ 5.4.* (semver) Unaffected: 5.10.239 , ≤ 5.10.* (semver) Unaffected: 5.15.186 , ≤ 5.15.* (semver) Unaffected: 6.1.142 , ≤ 6.1.* (semver) Unaffected: 6.6.95 , ≤ 6.6.* (semver) Unaffected: 6.12.35 , ≤ 6.12.* (semver) Unaffected: 6.15.4 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-03T17:36:30.512Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"arch/arm64/kernel/ptrace.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "64773b3ea09235168a549a195cba43bb867c4a17",
"status": "affected",
"version": "0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7",
"versionType": "git"
},
{
"lessThan": "67abac27d806e8f9d4226ec1528540cf73af673a",
"status": "affected",
"version": "0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7",
"versionType": "git"
},
{
"lessThan": "92750bfe7b0d8dbcaf578c091a65eda1c5f9ad38",
"status": "affected",
"version": "0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7",
"versionType": "git"
},
{
"lessThan": "01f91d415a8375d85e0c7d3615cd4a168308bb7c",
"status": "affected",
"version": "0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7",
"versionType": "git"
},
{
"lessThan": "21da6d3561f373898349ca7167c9811c020da695",
"status": "affected",
"version": "0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7",
"versionType": "git"
},
{
"lessThan": "22f935bc86bdfbde04009f05eee191d220cd8c89",
"status": "affected",
"version": "0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7",
"versionType": "git"
},
{
"lessThan": "422e565b7889ebfd9c8705a3fc786642afe61fca",
"status": "affected",
"version": "0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7",
"versionType": "git"
},
{
"lessThan": "39dfc971e42d886e7df01371cd1bef505076d84c",
"status": "affected",
"version": "0a8ea52c3eb157dd65e224fc95b7c9c99fcba9f7",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"arch/arm64/kernel/ptrace.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.8"
},
{
"lessThan": "4.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.295",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.239",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.186",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.142",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.95",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.35",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.295",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.239",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.186",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.142",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.95",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.35",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.4",
"versionStartIncluding": "4.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "4.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()\n\nKASAN reports a stack-out-of-bounds read in regs_get_kernel_stack_nth().\n\nCall Trace:\n[ 97.283505] BUG: KASAN: stack-out-of-bounds in regs_get_kernel_stack_nth+0xa8/0xc8\n[ 97.284677] Read of size 8 at addr ffff800089277c10 by task 1.sh/2550\n[ 97.285732]\n[ 97.286067] CPU: 7 PID: 2550 Comm: 1.sh Not tainted 6.6.0+ #11\n[ 97.287032] Hardware name: linux,dummy-virt (DT)\n[ 97.287815] Call trace:\n[ 97.288279] dump_backtrace+0xa0/0x128\n[ 97.288946] show_stack+0x20/0x38\n[ 97.289551] dump_stack_lvl+0x78/0xc8\n[ 97.290203] print_address_description.constprop.0+0x84/0x3c8\n[ 97.291159] print_report+0xb0/0x280\n[ 97.291792] kasan_report+0x84/0xd0\n[ 97.292421] __asan_load8+0x9c/0xc0\n[ 97.293042] regs_get_kernel_stack_nth+0xa8/0xc8\n[ 97.293835] process_fetch_insn+0x770/0xa30\n[ 97.294562] kprobe_trace_func+0x254/0x3b0\n[ 97.295271] kprobe_dispatcher+0x98/0xe0\n[ 97.295955] kprobe_breakpoint_handler+0x1b0/0x210\n[ 97.296774] call_break_hook+0xc4/0x100\n[ 97.297451] brk_handler+0x24/0x78\n[ 97.298073] do_debug_exception+0xac/0x178\n[ 97.298785] el1_dbg+0x70/0x90\n[ 97.299344] el1h_64_sync_handler+0xcc/0xe8\n[ 97.300066] el1h_64_sync+0x78/0x80\n[ 97.300699] kernel_clone+0x0/0x500\n[ 97.301331] __arm64_sys_clone+0x70/0x90\n[ 97.302084] invoke_syscall+0x68/0x198\n[ 97.302746] el0_svc_common.constprop.0+0x11c/0x150\n[ 97.303569] do_el0_svc+0x38/0x50\n[ 97.304164] el0_svc+0x44/0x1d8\n[ 97.304749] el0t_64_sync_handler+0x100/0x130\n[ 97.305500] el0t_64_sync+0x188/0x190\n[ 97.306151]\n[ 97.306475] The buggy address belongs to stack of task 1.sh/2550\n[ 97.307461] and is located at offset 0 in frame:\n[ 97.308257] __se_sys_clone+0x0/0x138\n[ 97.308910]\n[ 97.309241] This frame has 1 object:\n[ 97.309873] [48, 184) \u0027args\u0027\n[ 97.309876]\n[ 97.310749] The buggy address belongs to the virtual mapping at\n[ 97.310749] [ffff800089270000, ffff800089279000) created by:\n[ 97.310749] dup_task_struct+0xc0/0x2e8\n[ 97.313347]\n[ 97.313674] The buggy address belongs to the physical page:\n[ 97.314604] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x14f69a\n[ 97.315885] flags: 0x15ffffe00000000(node=1|zone=2|lastcpupid=0xfffff)\n[ 97.316957] raw: 015ffffe00000000 0000000000000000 dead000000000122 0000000000000000\n[ 97.318207] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000\n[ 97.319445] page dumped because: kasan: bad access detected\n[ 97.320371]\n[ 97.320694] Memory state around the buggy address:\n[ 97.321511] ffff800089277b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 97.322681] ffff800089277b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n[ 97.323846] \u003effff800089277c00: 00 00 f1 f1 f1 f1 f1 f1 00 00 00 00 00 00 00 00\n[ 97.325023] ^\n[ 97.325683] ffff800089277c80: 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 f3 f3\n[ 97.326856] ffff800089277d00: f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n\nThis issue seems to be related to the behavior of some gcc compilers and\nwas also fixed on the s390 architecture before:\n\n commit d93a855c31b7 (\"s390/ptrace: Avoid KASAN false positives in regs_get_kernel_stack_nth()\")\n\nAs described in that commit, regs_get_kernel_stack_nth() has confirmed that\n`addr` is on the stack, so reading the value at `*addr` should be allowed.\nUse READ_ONCE_NOCHECK() helper to silence the KASAN check for this case.\n\n[will: Use \u0027*addr\u0027 as the argument to READ_ONCE_NOCHECK()]"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:25:42.232Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/64773b3ea09235168a549a195cba43bb867c4a17"
},
{
"url": "https://git.kernel.org/stable/c/67abac27d806e8f9d4226ec1528540cf73af673a"
},
{
"url": "https://git.kernel.org/stable/c/92750bfe7b0d8dbcaf578c091a65eda1c5f9ad38"
},
{
"url": "https://git.kernel.org/stable/c/01f91d415a8375d85e0c7d3615cd4a168308bb7c"
},
{
"url": "https://git.kernel.org/stable/c/21da6d3561f373898349ca7167c9811c020da695"
},
{
"url": "https://git.kernel.org/stable/c/22f935bc86bdfbde04009f05eee191d220cd8c89"
},
{
"url": "https://git.kernel.org/stable/c/422e565b7889ebfd9c8705a3fc786642afe61fca"
},
{
"url": "https://git.kernel.org/stable/c/39dfc971e42d886e7df01371cd1bef505076d84c"
}
],
"title": "arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38320",
"datePublished": "2025-07-10T08:14:56.398Z",
"dateReserved": "2025-04-16T04:51:24.004Z",
"dateUpdated": "2026-05-11T21:25:42.232Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-38346 (GCVE-0-2025-38346)
Vulnerability from cvelistv5 – Published: 2025-07-10 08:15 – Updated: 2026-08-05 12:01
VLAI
EPSS
VEX
Title
ftrace: Fix UAF when lookup kallsym after ftrace disabled
Summary
In the Linux kernel, the following vulnerability has been resolved:
ftrace: Fix UAF when lookup kallsym after ftrace disabled
The following issue happens with a buggy module:
BUG: unable to handle page fault for address: ffffffffc05d0218
PGD 1bd66f067 P4D 1bd66f067 PUD 1bd671067 PMD 101808067 PTE 0
Oops: Oops: 0000 [#1] SMP KASAN PTI
Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
RIP: 0010:sized_strscpy+0x81/0x2f0
RSP: 0018:ffff88812d76fa08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffffc0601010 RCX: dffffc0000000000
RDX: 0000000000000038 RSI: dffffc0000000000 RDI: ffff88812608da2d
RBP: 8080808080808080 R08: ffff88812608da2d R09: ffff88812608da68
R10: ffff88812608d82d R11: ffff88812608d810 R12: 0000000000000038
R13: ffff88812608da2d R14: ffffffffc05d0218 R15: fefefefefefefeff
FS: 00007fef552de740(0000) GS:ffff8884251c7000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffc05d0218 CR3: 00000001146f0000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
ftrace_mod_get_kallsym+0x1ac/0x590
update_iter_mod+0x239/0x5b0
s_next+0x5b/0xa0
seq_read_iter+0x8c9/0x1070
seq_read+0x249/0x3b0
proc_reg_read+0x1b0/0x280
vfs_read+0x17f/0x920
ksys_read+0xf3/0x1c0
do_syscall_64+0x5f/0x2e0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
The above issue may happen as follows:
(1) Add kprobe tracepoint;
(2) insmod test.ko;
(3) Module triggers ftrace disabled;
(4) rmmod test.ko;
(5) cat /proc/kallsyms; --> Will trigger UAF as test.ko already removed;
ftrace_mod_get_kallsym()
...
strscpy(module_name, mod_map->mod->name, MODULE_NAME_LEN);
...
The problem is when a module triggers an issue with ftrace and
sets ftrace_disable. The ftrace_disable is set when an anomaly is
discovered and to prevent any more damage, ftrace stops all text
modification. The issue that happened was that the ftrace_disable stops
more than just the text modification.
When a module is loaded, its init functions can also be traced. Because
kallsyms deletes the init functions after a module has loaded, ftrace
saves them when the module is loaded and function tracing is enabled. This
allows the output of the function trace to show the init function names
instead of just their raw memory addresses.
When a module is removed, ftrace_release_mod() is called, and if
ftrace_disable is set, it just returns without doing anything more. The
problem here is that it leaves the mod_list still around and if kallsyms
is called, it will call into this code and access the module memory that
has already been freed as it will return:
strscpy(module_name, mod_map->mod->name, MODULE_NAME_LEN);
Where the "mod" no longer exists and triggers a UAF bug.
Severity
7.8 (High)
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/d064c68781c19f378… | |
| https://git.kernel.org/stable/c/8690cd3258455bbae… | |
| https://git.kernel.org/stable/c/6805582abb720681d… | |
| https://git.kernel.org/stable/c/03a162933c4a03b9f… | |
| https://git.kernel.org/stable/c/83a692a9792aa8624… | |
| https://git.kernel.org/stable/c/8e89c17dc8970c5f7… | |
| https://git.kernel.org/stable/c/f78a786ad9a5443a2… | |
| https://git.kernel.org/stable/c/f914b52c379c12288… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
aba4b5c22cbac296f4081a0476d0c55828f135b4 , < d064c68781c19f378af1ae741d9132d35d24b2bb
(git)
Affected: aba4b5c22cbac296f4081a0476d0c55828f135b4 , < 8690cd3258455bbae64f809e1d3ee0f043661c71 (git) Affected: aba4b5c22cbac296f4081a0476d0c55828f135b4 , < 6805582abb720681dd1c87ff677f155dcf4e86c9 (git) Affected: aba4b5c22cbac296f4081a0476d0c55828f135b4 , < 03a162933c4a03b9f1a84f7d8482903c7e1e11bb (git) Affected: aba4b5c22cbac296f4081a0476d0c55828f135b4 , < 83a692a9792aa86249d68a8ac0b9d55ecdd255fa (git) Affected: aba4b5c22cbac296f4081a0476d0c55828f135b4 , < 8e89c17dc8970c5f71a3a991f5724d4c8de42d8c (git) Affected: aba4b5c22cbac296f4081a0476d0c55828f135b4 , < f78a786ad9a5443a29eef4dae60cde85b7375129 (git) Affected: aba4b5c22cbac296f4081a0476d0c55828f135b4 , < f914b52c379c12288b7623bb814d0508dbe7481d (git) |
|
| Linux | Linux |
Affected:
4.15
Unaffected: 0 , < 4.15 (semver) Unaffected: 5.4.295 , ≤ 5.4.* (semver) Unaffected: 5.10.239 , ≤ 5.10.* (semver) Unaffected: 5.15.186 , ≤ 5.15.* (semver) Unaffected: 6.1.142 , ≤ 6.1.* (semver) Unaffected: 6.6.95 , ≤ 6.6.* (semver) Unaffected: 6.12.35 , ≤ 6.12.* (semver) Unaffected: 6.15.4 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-03T17:36:55.187Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"kernel/trace/ftrace.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "d064c68781c19f378af1ae741d9132d35d24b2bb",
"status": "affected",
"version": "aba4b5c22cbac296f4081a0476d0c55828f135b4",
"versionType": "git"
},
{
"lessThan": "8690cd3258455bbae64f809e1d3ee0f043661c71",
"status": "affected",
"version": "aba4b5c22cbac296f4081a0476d0c55828f135b4",
"versionType": "git"
},
{
"lessThan": "6805582abb720681dd1c87ff677f155dcf4e86c9",
"status": "affected",
"version": "aba4b5c22cbac296f4081a0476d0c55828f135b4",
"versionType": "git"
},
{
"lessThan": "03a162933c4a03b9f1a84f7d8482903c7e1e11bb",
"status": "affected",
"version": "aba4b5c22cbac296f4081a0476d0c55828f135b4",
"versionType": "git"
},
{
"lessThan": "83a692a9792aa86249d68a8ac0b9d55ecdd255fa",
"status": "affected",
"version": "aba4b5c22cbac296f4081a0476d0c55828f135b4",
"versionType": "git"
},
{
"lessThan": "8e89c17dc8970c5f71a3a991f5724d4c8de42d8c",
"status": "affected",
"version": "aba4b5c22cbac296f4081a0476d0c55828f135b4",
"versionType": "git"
},
{
"lessThan": "f78a786ad9a5443a29eef4dae60cde85b7375129",
"status": "affected",
"version": "aba4b5c22cbac296f4081a0476d0c55828f135b4",
"versionType": "git"
},
{
"lessThan": "f914b52c379c12288b7623bb814d0508dbe7481d",
"status": "affected",
"version": "aba4b5c22cbac296f4081a0476d0c55828f135b4",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"kernel/trace/ftrace.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.15"
},
{
"lessThan": "4.15",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.295",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.239",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.186",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.142",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.95",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.35",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.295",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.239",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.186",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.142",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.95",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.35",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.4",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "4.15",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix UAF when lookup kallsym after ftrace disabled\n\nThe following issue happens with a buggy module:\n\nBUG: unable to handle page fault for address: ffffffffc05d0218\nPGD 1bd66f067 P4D 1bd66f067 PUD 1bd671067 PMD 101808067 PTE 0\nOops: Oops: 0000 [#1] SMP KASAN PTI\nTainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\nRIP: 0010:sized_strscpy+0x81/0x2f0\nRSP: 0018:ffff88812d76fa08 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffffffffc0601010 RCX: dffffc0000000000\nRDX: 0000000000000038 RSI: dffffc0000000000 RDI: ffff88812608da2d\nRBP: 8080808080808080 R08: ffff88812608da2d R09: ffff88812608da68\nR10: ffff88812608d82d R11: ffff88812608d810 R12: 0000000000000038\nR13: ffff88812608da2d R14: ffffffffc05d0218 R15: fefefefefefefeff\nFS: 00007fef552de740(0000) GS:ffff8884251c7000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffffffc05d0218 CR3: 00000001146f0000 CR4: 00000000000006f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n ftrace_mod_get_kallsym+0x1ac/0x590\n update_iter_mod+0x239/0x5b0\n s_next+0x5b/0xa0\n seq_read_iter+0x8c9/0x1070\n seq_read+0x249/0x3b0\n proc_reg_read+0x1b0/0x280\n vfs_read+0x17f/0x920\n ksys_read+0xf3/0x1c0\n do_syscall_64+0x5f/0x2e0\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThe above issue may happen as follows:\n(1) Add kprobe tracepoint;\n(2) insmod test.ko;\n(3) Module triggers ftrace disabled;\n(4) rmmod test.ko;\n(5) cat /proc/kallsyms; --\u003e Will trigger UAF as test.ko already removed;\nftrace_mod_get_kallsym()\n...\nstrscpy(module_name, mod_map-\u003emod-\u003ename, MODULE_NAME_LEN);\n...\n\nThe problem is when a module triggers an issue with ftrace and\nsets ftrace_disable. The ftrace_disable is set when an anomaly is\ndiscovered and to prevent any more damage, ftrace stops all text\nmodification. The issue that happened was that the ftrace_disable stops\nmore than just the text modification.\n\nWhen a module is loaded, its init functions can also be traced. Because\nkallsyms deletes the init functions after a module has loaded, ftrace\nsaves them when the module is loaded and function tracing is enabled. This\nallows the output of the function trace to show the init function names\ninstead of just their raw memory addresses.\n\nWhen a module is removed, ftrace_release_mod() is called, and if\nftrace_disable is set, it just returns without doing anything more. The\nproblem here is that it leaves the mod_list still around and if kallsyms\nis called, it will call into this code and access the module memory that\nhas already been freed as it will return:\n\n strscpy(module_name, mod_map-\u003emod-\u003ename, MODULE_NAME_LEN);\n\nWhere the \"mod\" no longer exists and triggers a UAF bug."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The dangling dereference is reached through a `read(2)` on the local `/proc/kallsyms` file, and the state is established by local module load/unload; no network or remote-peer data reaches `ftrace_mod_get_kallsym()`.\nAC:L - Scoring the vulnerable configuration (a tracer registered when the module\u0027s init text was freed, `ftrace_disabled` latched by an ftrace anomaly, module then unloaded), the stale `ftrace_mod_map` persists indefinitely and the dereference is fully deterministic \u2014 no race, no memory-layout luck, and every subsequent `/proc/kallsyms` read re-triggers it at will.\nPR:L - `/proc/kallsyms` is created mode 0444 and the module-name column is emitted regardless of `kptr_restrict`, so any unprivileged local user reaches `strscpy(module_name, mod_map-\u003emod-\u003ename, ...)` with a plain `cat`, exactly as in the reported oops from `ksys_read`.\nUI:N - The attacker\u0027s own read of `/proc/kallsyms` performs the dereference; no separate victim has to open a file, mount anything, or take any action.\nS:U - Both the freed module memory and the faulting code are kernel-internal, within the same security authority the attacker is already attacking; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `strscpy()` reads from `mod_map-\u003emod-\u003ename` inside the freed module allocation and the result is printed straight to userspace, so once the execmem/vmalloc range is reclaimed the attacker harvests reclaimed kernel memory; `ftrace_mod_address_lookup()` also returns that dangling pointer to `kallsyms_lookup()`/`sprint_symbol()`, which copy it with no length bound and can over-read well past the object.\nI:H - A stale `struct module *` is dereferenced after its backing allocation has been returned to the module/vmalloc allocator, so reclaiming that allocation makes the kernel interpret attacker-influenced content as live module metadata \u2014 the standard use-after-free corruption primitive.\nA:H - In the common case the module range is unmapped and the access faults on a non-present kernel address, oopsing in `sized_strscpy()` as in the reported trace; because the leaked `mod_map` is never freed, any unprivileged user can panic the machine repeatedly."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:01:17.019Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/d064c68781c19f378af1ae741d9132d35d24b2bb"
},
{
"url": "https://git.kernel.org/stable/c/8690cd3258455bbae64f809e1d3ee0f043661c71"
},
{
"url": "https://git.kernel.org/stable/c/6805582abb720681dd1c87ff677f155dcf4e86c9"
},
{
"url": "https://git.kernel.org/stable/c/03a162933c4a03b9f1a84f7d8482903c7e1e11bb"
},
{
"url": "https://git.kernel.org/stable/c/83a692a9792aa86249d68a8ac0b9d55ecdd255fa"
},
{
"url": "https://git.kernel.org/stable/c/8e89c17dc8970c5f71a3a991f5724d4c8de42d8c"
},
{
"url": "https://git.kernel.org/stable/c/f78a786ad9a5443a29eef4dae60cde85b7375129"
},
{
"url": "https://git.kernel.org/stable/c/f914b52c379c12288b7623bb814d0508dbe7481d"
}
],
"title": "ftrace: Fix UAF when lookup kallsym after ftrace disabled",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38346",
"datePublished": "2025-07-10T08:15:14.290Z",
"dateReserved": "2025-04-16T04:51:24.006Z",
"dateUpdated": "2026-08-05T12:01:17.019Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…
Loading…