CWE-908
AllowedUse of Uninitialized Resource
Abstraction: Base · Status: Incomplete
The product uses or accesses a resource that has not been initialized.
899 vulnerabilities reference this CWE, most recent first.
GHSA-MFQ9-38GX-M3V7
Vulnerability from github – Published: 2025-10-14 18:30 – Updated: 2025-10-14 18:30Use of uninitialized resource in Windows Kernel allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-59194"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-14T17:15:58Z",
"severity": "HIGH"
},
"details": "Use of uninitialized resource in Windows Kernel allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-mfq9-38gx-m3v7",
"modified": "2025-10-14T18:30:33Z",
"published": "2025-10-14T18:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59194"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59194"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MG69-HWRW-4W98
Vulnerability from github – Published: 2026-03-25 12:30 – Updated: 2026-04-24 21:31In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: Fix error handling in slot reset
If the device has not recovered after slot reset is called, it goes to out label for error handling. There it could make decision based on uninitialized hive pointer and could result in accessing an uninitialized list.
Initialize the list and hive properly so that it handles the error situation and also releases the reset domain lock which is acquired during error_detected callback.
(cherry picked from commit bb71362182e59caa227e4192da5a612b09349696)
{
"affected": [],
"aliases": [
"CVE-2026-23358"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T11:16:34Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix error handling in slot reset\n\nIf the device has not recovered after slot reset is called, it goes to\nout label for error handling. There it could make decision based on\nuninitialized hive pointer and could result in accessing an uninitialized\nlist.\n\nInitialize the list and hive properly so that it handles the error\nsituation and also releases the reset domain lock which is acquired\nduring error_detected callback.\n\n(cherry picked from commit bb71362182e59caa227e4192da5a612b09349696)",
"id": "GHSA-mg69-hwrw-4w98",
"modified": "2026-04-24T21:31:56Z",
"published": "2026-03-25T12:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23358"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/73e8bdf14248136459753252a438177df7ed8c7c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b57c4ec98c17789136a4db948aec6daadceb5024"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/baf4e7968911635eb816870af0ea587ac1457052"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MH6R-68R2-78QW
Vulnerability from github – Published: 2025-02-27 03:34 – Updated: 2026-05-12 15:30In the Linux kernel, the following vulnerability has been resolved:
team: better TEAM_OPTION_TYPE_STRING validation
syzbot reported following splat [1]
Make sure user-provided data contains one nul byte.
[1] BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:633 [inline] BUG: KMSAN: uninit-value in string+0x3ec/0x5f0 lib/vsprintf.c:714 string_nocheck lib/vsprintf.c:633 [inline] string+0x3ec/0x5f0 lib/vsprintf.c:714 vsnprintf+0xa5d/0x1960 lib/vsprintf.c:2843 __request_module+0x252/0x9f0 kernel/module/kmod.c:149 team_mode_get drivers/net/team/team_core.c:480 [inline] team_change_mode drivers/net/team/team_core.c:607 [inline] team_mode_option_set+0x437/0x970 drivers/net/team/team_core.c:1401 team_option_set drivers/net/team/team_core.c:375 [inline] team_nl_options_set_doit+0x1339/0x1f90 drivers/net/team/team_core.c:2662 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x1214/0x12c0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2543 genl_rcv+0x40/0x60 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline] netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1348 netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1892 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:733 _syssendmsg+0x877/0xb60 net/socket.c:2573 _sys_sendmsg+0x28d/0x3c0 net/socket.c:2627 __sys_sendmsg net/socket.c:2659 [inline] __do_sys_sendmsg net/socket.c:2664 [inline] __se_sys_sendmsg net/socket.c:2662 [inline] __x64_sys_sendmsg+0x212/0x3c0 net/socket.c:2662 x64_sys_call+0x2ed6/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f
{
"affected": [],
"aliases": [
"CVE-2025-21787"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-27T03:15:19Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nteam: better TEAM_OPTION_TYPE_STRING validation\n\nsyzbot reported following splat [1]\n\nMake sure user-provided data contains one nul byte.\n\n[1]\n BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:633 [inline]\n BUG: KMSAN: uninit-value in string+0x3ec/0x5f0 lib/vsprintf.c:714\n string_nocheck lib/vsprintf.c:633 [inline]\n string+0x3ec/0x5f0 lib/vsprintf.c:714\n vsnprintf+0xa5d/0x1960 lib/vsprintf.c:2843\n __request_module+0x252/0x9f0 kernel/module/kmod.c:149\n team_mode_get drivers/net/team/team_core.c:480 [inline]\n team_change_mode drivers/net/team/team_core.c:607 [inline]\n team_mode_option_set+0x437/0x970 drivers/net/team/team_core.c:1401\n team_option_set drivers/net/team/team_core.c:375 [inline]\n team_nl_options_set_doit+0x1339/0x1f90 drivers/net/team/team_core.c:2662\n genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]\n genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]\n genl_rcv_msg+0x1214/0x12c0 net/netlink/genetlink.c:1210\n netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2543\n genl_rcv+0x40/0x60 net/netlink/genetlink.c:1219\n netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]\n netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1348\n netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1892\n sock_sendmsg_nosec net/socket.c:718 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:733\n ____sys_sendmsg+0x877/0xb60 net/socket.c:2573\n ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2627\n __sys_sendmsg net/socket.c:2659 [inline]\n __do_sys_sendmsg net/socket.c:2664 [inline]\n __se_sys_sendmsg net/socket.c:2662 [inline]\n __x64_sys_sendmsg+0x212/0x3c0 net/socket.c:2662\n x64_sys_call+0x2ed6/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:47\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f",
"id": "GHSA-mh6r-68r2-78qw",
"modified": "2026-05-12T15:30:49Z",
"published": "2025-02-27T03:34:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21787"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4236bf4716589558cc0f3c3612642b2c2141b04e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4512482e4805dd30bc77dec511f2a2edba5cb868"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5bef3ac184b5626ea62385d6b82a1992b89d7940"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7c30483d0f6bdb2230e10e3e4be5167927eac7a0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7f5af50f3aa0af8cbef9fb76fffeed69e8143f59"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8401cade1918281177974b32c925afdce750d292"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d071a91fa614ecdf760c29f61f6a7bfb7df796d6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f443687ad20c70320d1248f35f57bf46cac8df0a"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MHJG-J5HQ-M4P7
Vulnerability from github – Published: 2024-07-30 09:32 – Updated: 2025-11-04 00:31In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: Using uninitialized value *size when calling amdgpu_vce_cs_reloc
Initialize the size before calling amdgpu_vce_cs_reloc, such as case 0x03000001. V2: To really improve the handling we would actually need to have a separate value of 0xffffffff.(Christian)
{
"affected": [],
"aliases": [
"CVE-2024-42228"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-30T08:15:07Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Using uninitialized value *size when calling amdgpu_vce_cs_reloc\n\nInitialize the size before calling amdgpu_vce_cs_reloc, such as case 0x03000001.\nV2: To really improve the handling we would actually\n need to have a separate value of 0xffffffff.(Christian)",
"id": "GHSA-mhjg-j5hq-m4p7",
"modified": "2025-11-04T00:31:09Z",
"published": "2024-07-30T09:32:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42228"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3b505759447637dcccb50cbd98ec6f8d2a04fc46"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/855ae72c20310e5402b2317fc537d911e87537ef"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/88a9a467c548d0b3c7761b4fd54a68e70f9c0944"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9ee1534ecdd5b4c013064663502d7fde824d2144"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d35cf41c8eb5d9fe95b21ae6ee2910f9ba4878e8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/da6a85d197888067e8d38b5d22c986b5b5cab712"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/df02642c21c984303fe34c3f7d72965792fb1a15"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f8f120b3de48b8b6bdf8988a9b334c2d61c17440"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MHM7-FJJW-2FGR
Vulnerability from github – Published: 2022-05-24 17:22 – Updated: 2022-05-24 17:22An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka 'Microsoft Office Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2020-1445.
{
"affected": [],
"aliases": [
"CVE-2020-1342"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-07-14T23:15:00Z",
"severity": "MODERATE"
},
"details": "An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka \u0027Microsoft Office Information Disclosure Vulnerability\u0027. This CVE ID is unique from CVE-2020-1445.",
"id": "GHSA-mhm7-fjjw-2fgr",
"modified": "2022-05-24T17:22:58Z",
"published": "2022-05-24T17:22:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1342"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1342"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-MJ99-X9W6-H3M8
Vulnerability from github – Published: 2025-09-15 15:31 – Updated: 2025-11-24 18:31In the Linux kernel, the following vulnerability has been resolved:
iommu/mediatek: Fix crash on isr after kexec()
If the system is rebooted via isr(), the IRQ handler might be triggered before the domain is initialized. Resulting on an invalid memory access error.
Fix: [ 0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070 [ 0.501166] Call trace: [ 0.501174] report_iommu_fault+0x28/0xfc [ 0.501180] mtk_iommu_isr+0x10c/0x1c0
[ joro: Fixed spelling in commit message ]
{
"affected": [],
"aliases": [
"CVE-2022-50236"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-15T14:15:34Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Fix crash on isr after kexec()\n\nIf the system is rebooted via isr(), the IRQ handler might\nbe triggered before the domain is initialized. Resulting on\nan invalid memory access error.\n\nFix:\n[ 0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070\n[ 0.501166] Call trace:\n[ 0.501174] report_iommu_fault+0x28/0xfc\n[ 0.501180] mtk_iommu_isr+0x10c/0x1c0\n\n[ joro: Fixed spelling in commit message ]",
"id": "GHSA-mj99-x9w6-h3m8",
"modified": "2025-11-24T18:31:08Z",
"published": "2025-09-15T15:31:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50236"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/00ef8885a945c37551547d8ac8361cacd20c4e42"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/85cc8a187f2de7a91e2cea522e9406fa12999269"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f13acee780cedb3e06a6dadf64d9104cccd2b9fc"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MJP4-7V4X-PFCC
Vulnerability from github – Published: 2023-08-15 00:31 – Updated: 2024-04-04 06:56In multiple locations of avrc, there is a possible leak of heap data due to uninitialized data. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2023-21233"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-14T22:15:12Z",
"severity": "HIGH"
},
"details": "In multiple locations of avrc, there is a possible leak of heap data due to uninitialized data. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.\n\n",
"id": "GHSA-mjp4-7v4x-pfcc",
"modified": "2024-04-04T06:56:29Z",
"published": "2023-08-15T00:31:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-21233"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/wear/2023-08-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MMG6-PQ22-8RVG
Vulnerability from github – Published: 2022-05-24 16:49 – Updated: 2022-05-24 16:49ImageMagick before 7.0.8-50 has a "use of uninitialized value" vulnerability in the function ReadCUTImage in coders/cut.c.
{
"affected": [],
"aliases": [
"CVE-2019-13135"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-07-01T20:15:00Z",
"severity": "HIGH"
},
"details": "ImageMagick before 7.0.8-50 has a \"use of uninitialized value\" vulnerability in the function ReadCUTImage in coders/cut.c.",
"id": "GHSA-mmg6-pq22-8rvg",
"modified": "2022-05-24T16:49:08Z",
"published": "2022-05-24T16:49:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-13135"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/issues/1599"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/commit/cdb383749ef7b68a38891440af8cc23e0115306d"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick6/commit/1e59b29e520d2beab73e8c78aacd5f1c0d76196d"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2019/08/msg00021.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00007.html"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K20336394"
},
{
"type": "WEB",
"url": "https://support.f5.com/csp/article/K20336394?utm_source=f5support\u0026amp;utm_medium=RSS"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4192-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2020/dsa-4712"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00069.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-MMG7-4C9C-2R54
Vulnerability from github – Published: 2026-07-21 15:30 – Updated: 2026-07-22 21:31Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153.
{
"affected": [],
"aliases": [
"CVE-2026-16384"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-21T13:17:13Z",
"severity": "HIGH"
},
"details": "Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153.",
"id": "GHSA-mmg7-4c9c-2r54",
"modified": "2026-07-22T21:31:53Z",
"published": "2026-07-21T15:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16384"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2041911"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-68"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-71"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MMHF-MX7H-V77H
Vulnerability from github – Published: 2024-05-19 09:34 – Updated: 2026-05-12 12:31In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_skbmod: prevent kernel-infoleak
syzbot found that tcf_skbmod_dump() was copying four bytes from kernel stack to user space [1].
The issue here is that 'struct tc_skbmod' has a four bytes hole.
We need to clear the structure before filling fields.
[1] BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline] BUG: KMSAN: kernel-infoleak in copy_to_user_iter lib/iov_iter.c:24 [inline] BUG: KMSAN: kernel-infoleak in iterate_ubuf include/linux/iov_iter.h:29 [inline] BUG: KMSAN: kernel-infoleak in iterate_and_advance2 include/linux/iov_iter.h:245 [inline] BUG: KMSAN: kernel-infoleak in iterate_and_advance include/linux/iov_iter.h:271 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x366/0x2520 lib/iov_iter.c:185 instrument_copy_to_user include/linux/instrumented.h:114 [inline] copy_to_user_iter lib/iov_iter.c:24 [inline] iterate_ubuf include/linux/iov_iter.h:29 [inline] iterate_and_advance2 include/linux/iov_iter.h:245 [inline] iterate_and_advance include/linux/iov_iter.h:271 [inline] _copy_to_iter+0x366/0x2520 lib/iov_iter.c:185 copy_to_iter include/linux/uio.h:196 [inline] simple_copy_to_iter net/core/datagram.c:532 [inline] __skb_datagram_iter+0x185/0x1000 net/core/datagram.c:420 skb_copy_datagram_iter+0x5c/0x200 net/core/datagram.c:546 skb_copy_datagram_msg include/linux/skbuff.h:4050 [inline] netlink_recvmsg+0x432/0x1610 net/netlink/af_netlink.c:1962 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0x2c4/0x340 net/socket.c:1068 __sys_recvfrom+0x35a/0x5f0 net/socket.c:2242 __do_sys_recvfrom net/socket.c:2260 [inline] __se_sys_recvfrom net/socket.c:2256 [inline] __x64_sys_recvfrom+0x126/0x1d0 net/socket.c:2256 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was stored to memory at: pskb_expand_head+0x30f/0x19d0 net/core/skbuff.c:2253 netlink_trim+0x2c2/0x330 net/netlink/af_netlink.c:1317 netlink_unicast+0x9f/0x1260 net/netlink/af_netlink.c:1351 nlmsg_unicast include/net/netlink.h:1144 [inline] nlmsg_notify+0x21d/0x2f0 net/netlink/af_netlink.c:2610 rtnetlink_send+0x73/0x90 net/core/rtnetlink.c:741 rtnetlink_maybe_send include/linux/rtnetlink.h:17 [inline] tcf_add_notify net/sched/act_api.c:2048 [inline] tcf_action_add net/sched/act_api.c:2071 [inline] tc_ctl_action+0x146e/0x19d0 net/sched/act_api.c:2119 rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2559 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6613 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0xf4c/0x1260 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x10df/0x11f0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 _syssendmsg+0x877/0xb60 net/socket.c:2584 _sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2674 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75
Uninit was stored to memory at: __nla_put lib/nlattr.c:1041 [inline] nla_put+0x1c6/0x230 lib/nlattr.c:1099 tcf_skbmod_dump+0x23f/0xc20 net/sched/act_skbmod.c:256 tcf_action_dump_old net/sched/act_api.c:1191 [inline] tcf_action_dump_1+0x85e/0x970 net/sched/act_api.c:1227 tcf_action_dump+0x1fd/0x460 net/sched/act_api.c:1251 tca_get_fill+0x519/0x7a0 net/sched/act_api.c:1628 tcf_add_notify_msg net/sched/act_api.c:2023 [inline] tcf_add_notify net/sched/act_api.c:2042 [inline] tcf_action_add net/sched/act_api.c:2071 [inline] tc_ctl_action+0x1365/0x19d0 net/sched/act_api.c:2119 rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595 netlink_rcv_skb+0x375/0x650 net/netlink/af_netli ---truncated---
{
"affected": [],
"aliases": [
"CVE-2024-35893"
],
"database_specific": {
"cwe_ids": [
"CWE-908"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-19T09:15:10Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_skbmod: prevent kernel-infoleak\n\nsyzbot found that tcf_skbmod_dump() was copying four bytes\nfrom kernel stack to user space [1].\n\nThe issue here is that \u0027struct tc_skbmod\u0027 has a four bytes hole.\n\nWe need to clear the structure before filling fields.\n\n[1]\nBUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]\n BUG: KMSAN: kernel-infoleak in copy_to_user_iter lib/iov_iter.c:24 [inline]\n BUG: KMSAN: kernel-infoleak in iterate_ubuf include/linux/iov_iter.h:29 [inline]\n BUG: KMSAN: kernel-infoleak in iterate_and_advance2 include/linux/iov_iter.h:245 [inline]\n BUG: KMSAN: kernel-infoleak in iterate_and_advance include/linux/iov_iter.h:271 [inline]\n BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x366/0x2520 lib/iov_iter.c:185\n instrument_copy_to_user include/linux/instrumented.h:114 [inline]\n copy_to_user_iter lib/iov_iter.c:24 [inline]\n iterate_ubuf include/linux/iov_iter.h:29 [inline]\n iterate_and_advance2 include/linux/iov_iter.h:245 [inline]\n iterate_and_advance include/linux/iov_iter.h:271 [inline]\n _copy_to_iter+0x366/0x2520 lib/iov_iter.c:185\n copy_to_iter include/linux/uio.h:196 [inline]\n simple_copy_to_iter net/core/datagram.c:532 [inline]\n __skb_datagram_iter+0x185/0x1000 net/core/datagram.c:420\n skb_copy_datagram_iter+0x5c/0x200 net/core/datagram.c:546\n skb_copy_datagram_msg include/linux/skbuff.h:4050 [inline]\n netlink_recvmsg+0x432/0x1610 net/netlink/af_netlink.c:1962\n sock_recvmsg_nosec net/socket.c:1046 [inline]\n sock_recvmsg+0x2c4/0x340 net/socket.c:1068\n __sys_recvfrom+0x35a/0x5f0 net/socket.c:2242\n __do_sys_recvfrom net/socket.c:2260 [inline]\n __se_sys_recvfrom net/socket.c:2256 [inline]\n __x64_sys_recvfrom+0x126/0x1d0 net/socket.c:2256\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nUninit was stored to memory at:\n pskb_expand_head+0x30f/0x19d0 net/core/skbuff.c:2253\n netlink_trim+0x2c2/0x330 net/netlink/af_netlink.c:1317\n netlink_unicast+0x9f/0x1260 net/netlink/af_netlink.c:1351\n nlmsg_unicast include/net/netlink.h:1144 [inline]\n nlmsg_notify+0x21d/0x2f0 net/netlink/af_netlink.c:2610\n rtnetlink_send+0x73/0x90 net/core/rtnetlink.c:741\n rtnetlink_maybe_send include/linux/rtnetlink.h:17 [inline]\n tcf_add_notify net/sched/act_api.c:2048 [inline]\n tcf_action_add net/sched/act_api.c:2071 [inline]\n tc_ctl_action+0x146e/0x19d0 net/sched/act_api.c:2119\n rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595\n netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2559\n rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6613\n netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]\n netlink_unicast+0xf4c/0x1260 net/netlink/af_netlink.c:1361\n netlink_sendmsg+0x10df/0x11f0 net/netlink/af_netlink.c:1905\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x30f/0x380 net/socket.c:745\n ____sys_sendmsg+0x877/0xb60 net/socket.c:2584\n ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\n __sys_sendmsg net/socket.c:2667 [inline]\n __do_sys_sendmsg net/socket.c:2676 [inline]\n __se_sys_sendmsg net/socket.c:2674 [inline]\n __x64_sys_sendmsg+0x307/0x4a0 net/socket.c:2674\n do_syscall_64+0xd5/0x1f0\n entry_SYSCALL_64_after_hwframe+0x6d/0x75\n\nUninit was stored to memory at:\n __nla_put lib/nlattr.c:1041 [inline]\n nla_put+0x1c6/0x230 lib/nlattr.c:1099\n tcf_skbmod_dump+0x23f/0xc20 net/sched/act_skbmod.c:256\n tcf_action_dump_old net/sched/act_api.c:1191 [inline]\n tcf_action_dump_1+0x85e/0x970 net/sched/act_api.c:1227\n tcf_action_dump+0x1fd/0x460 net/sched/act_api.c:1251\n tca_get_fill+0x519/0x7a0 net/sched/act_api.c:1628\n tcf_add_notify_msg net/sched/act_api.c:2023 [inline]\n tcf_add_notify net/sched/act_api.c:2042 [inline]\n tcf_action_add net/sched/act_api.c:2071 [inline]\n tc_ctl_action+0x1365/0x19d0 net/sched/act_api.c:2119\n rtnetlink_rcv_msg+0x1737/0x1900 net/core/rtnetlink.c:6595\n netlink_rcv_skb+0x375/0x650 net/netlink/af_netli\n---truncated---",
"id": "GHSA-mmhf-mx7h-v77h",
"modified": "2026-05-12T12:31:48Z",
"published": "2024-05-19T09:34:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35893"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/55d3fe7b2b7bc354e7cbc1f7b8f98a29ccd5a366"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5e45dc4408857305f4685abfd7a528a1e58b51b5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/729ad2ac2a2cdc9f4a4bdfd40bfd276e6bc33924"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7bb2c7103d8c13b06a57bf997b8cdbe93cd7283c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a097fc199ab5f4b5392c5144034c0d2148b55a14"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d313eb8b77557a6d5855f42d2234bd592c7b50dd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f190a4aa03cbd518bd9c62a66e1233984f5fd2ec"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f356eb2fb567e0931143ac1769ac802d3b3e2077"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Explicitly initialize the resource before use. If this is performed through an API function or standard procedure, follow all required steps.
Mitigation
Pay close attention to complex conditionals that affect initialization, since some branches might not perform the initialization.
Mitigation
Avoid race conditions (CWE-362) during initialization routines.
Mitigation
Run or compile the product with settings that generate warnings about uninitialized variables or data.
No CAPEC attack patterns related to this CWE.