Vulnerability-Lookup

oesa-2025-2764

Vulnerability from osv_openeuler

Published

2025-11-28 11:09

Modified

2026-08-06 11:09

Summary

kernel security update

Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()There s issue as follows:BUG: KASAN: use-after-free in ext4_xattr_inode_dec_ref_all+0x6ff/0x790Read of size 4 at addr ffff88807b003000 by task syz-executor.0/15172CPU: 3 PID: 15172 Comm: syz-executor.0Call Trace: __dump_stack lib/dump_stack.c:82 [inline] dump_stack+0xbe/0xfd lib/dump_stack.c:123 print_address_description.constprop.0+0x1e/0x280 mm/kasan/report.c:400 __kasan_report.cold+0x6c/0x84 mm/kasan/report.c:560 kasan_report+0x3a/0x50 mm/kasan/report.c:585 ext4_xattr_inode_dec_ref_all+0x6ff/0x790 fs/ext4/xattr.c:1137 ext4_xattr_delete_inode+0x4c7/0xda0 fs/ext4/xattr.c:2896 ext4_evict_inode+0xb3b/0x1670 fs/ext4/inode.c:323 evict+0x39f/0x880 fs/inode.c:622 iput_final fs/inode.c:1746 [inline] iput fs/inode.c:1772 [inline] iput+0x525/0x6c0 fs/inode.c:1758 ext4_orphan_cleanup fs/ext4/super.c:3298 [inline] ext4_fill_super+0x8c57/0xba40 fs/ext4/super.c:5300 mount_bdev+0x355/0x410 fs/super.c:1446 legacy_get_tree+0xfe/0x220 fs/fs_context.c:611 vfs_get_tree+0x8d/0x2f0 fs/super.c:1576 do_new_mount fs/namespace.c:2983 [inline] path_mount+0x119a/0x1ad0 fs/namespace.c:3316 do_mount+0xfc/0x110 fs/namespace.c:3329 __do_sys_mount fs/namespace.c:3540 [inline] __se_sys_mount+0x219/0x2e0 fs/namespace.c:3514 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1Memory state around the buggy address: ffff88807b002f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88807b002f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00>ffff88807b003000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88807b003080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88807b003100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffAbove issue happens as ext4_xattr_delete_inode() isn t check xattris valid if xattr is in inode.To solve above issue call xattr_check_inode() check if xattr if validin inode. In fact, we can directly verify in ext4_iget_extra_inode(),so that there is no divergent verification.(CVE-2025-22121)

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.(CVE-2025-39751)

In the Linux kernel, the following vulnerability has been resolved:

crypto: essiv - Check ssize for decryption and in-place encryption

Move the ssize check to the start in essiv_aead_crypt so that it's also checked for decryption and in-place encryption.(CVE-2025-40019)

In the Linux kernel, a memory leak vulnerability exists. Cilium's BPF egress gateway feature redirects K8s Pod traffic through vxlan tunnels to dedicated egress gateways. When using the bpf_redirect_neigh() helper to forward packets, vxlan allocates metadata_dst objects and attaches them to skb through fake dst entries. However, since bpf_redirect_neigh() only sets new dst entries without first dropping existing ones, the metadata_dst objects are never released, causing continuous increase in kmalloc-256 slab usage.(CVE-2025-40183)

In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request(). The cpufreq_cpu_put() call in update_qos_request() takes place too early because the latter subsequently calls freq_qos_update_request() that indirectly accesses the policy object in question through the QoS request object passed to it. Fortunately, update_qos_request() is called under intel_pstate_driver_lock, so this issue does not matter for changing the intel_pstate operation mode, but it theoretically can cause a crash to occur on CPU device hot removal (which currently can only happen in virt, but it is formally supported nevertheless). Address this issue by modifying update_qos_request() to drop the reference to the policy later.(CVE-2025-40194)

Severity

7.0 (High)


                    
                      CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-22121	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-39751	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-40019	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-40183	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2025-40194	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "bpftool-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "bpftool-debuginfo-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "kernel-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "kernel-debuginfo-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "kernel-debugsource-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "kernel-devel-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "kernel-headers-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "kernel-source-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "kernel-tools-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "kernel-tools-debuginfo-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "kernel-tools-devel-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "perf-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "perf-debuginfo-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "python3-perf-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm",
          "python3-perf-debuginfo-5.10.0-292.0.0.195.oe2203sp4.aarch64.rpm"
        ],
        "src": [
          "kernel-5.10.0-292.0.0.195.oe2203sp4.src.rpm"
        ],
        "x86_64": [
          "bpftool-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "bpftool-debuginfo-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "kernel-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "kernel-debuginfo-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "kernel-debugsource-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "kernel-devel-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "kernel-headers-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "kernel-source-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "kernel-tools-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "kernel-tools-debuginfo-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "kernel-tools-devel-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "perf-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "perf-debuginfo-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "python3-perf-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm",
          "python3-perf-debuginfo-5.10.0-292.0.0.195.oe2203sp4.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP4",
        "name": "kernel",
        "purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-22.03-LTS-SP4"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.10.0-292.0.0.195.oe2203sp4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\n\nIn the Linux kernel, the following vulnerability has been resolved:ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()There s issue as follows:BUG: KASAN: use-after-free in ext4_xattr_inode_dec_ref_all+0x6ff/0x790Read of size 4 at addr ffff88807b003000 by task syz-executor.0/15172CPU: 3 PID: 15172 Comm: syz-executor.0Call Trace: __dump_stack lib/dump_stack.c:82 [inline] dump_stack+0xbe/0xfd lib/dump_stack.c:123 print_address_description.constprop.0+0x1e/0x280 mm/kasan/report.c:400 __kasan_report.cold+0x6c/0x84 mm/kasan/report.c:560 kasan_report+0x3a/0x50 mm/kasan/report.c:585 ext4_xattr_inode_dec_ref_all+0x6ff/0x790 fs/ext4/xattr.c:1137 ext4_xattr_delete_inode+0x4c7/0xda0 fs/ext4/xattr.c:2896 ext4_evict_inode+0xb3b/0x1670 fs/ext4/inode.c:323 evict+0x39f/0x880 fs/inode.c:622 iput_final fs/inode.c:1746 [inline] iput fs/inode.c:1772 [inline] iput+0x525/0x6c0 fs/inode.c:1758 ext4_orphan_cleanup fs/ext4/super.c:3298 [inline] ext4_fill_super+0x8c57/0xba40 fs/ext4/super.c:5300 mount_bdev+0x355/0x410 fs/super.c:1446 legacy_get_tree+0xfe/0x220 fs/fs_context.c:611 vfs_get_tree+0x8d/0x2f0 fs/super.c:1576 do_new_mount fs/namespace.c:2983 [inline] path_mount+0x119a/0x1ad0 fs/namespace.c:3316 do_mount+0xfc/0x110 fs/namespace.c:3329 __do_sys_mount fs/namespace.c:3540 [inline] __se_sys_mount+0x219/0x2e0 fs/namespace.c:3514 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1Memory state around the buggy address: ffff88807b002f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88807b002f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\u0026gt;ffff88807b003000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff                   ^ ffff88807b003080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88807b003100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffAbove issue happens as ext4_xattr_delete_inode() isn t check xattris valid if xattr is in inode.To solve above issue call xattr_check_inode() check if xattr if validin inode. In fact, we can directly verify in ext4_iget_extra_inode(),so that there is no divergent verification.(CVE-2025-22121)\n\nRejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.(CVE-2025-39751)\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: essiv - Check ssize for decryption and in-place encryption\n\nMove the ssize check to the start in essiv_aead_crypt so that\nit\u0026apos;s also checked for decryption and in-place encryption.(CVE-2025-40019)\n\nIn the Linux kernel, a memory leak vulnerability exists. Cilium\u0026apos;s BPF egress gateway feature redirects K8s Pod traffic through vxlan tunnels to dedicated egress gateways. When using the bpf_redirect_neigh() helper to forward packets, vxlan allocates metadata_dst objects and attaches them to skb through fake dst entries. However, since bpf_redirect_neigh() only sets new dst entries without first dropping existing ones, the metadata_dst objects are never released, causing continuous increase in kmalloc-256 slab usage.(CVE-2025-40183)\n\nIn the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request(). The cpufreq_cpu_put() call in update_qos_request() takes place too early because the latter subsequently calls freq_qos_update_request() that indirectly accesses the policy object in question through the QoS request object passed to it. Fortunately, update_qos_request() is called under intel_pstate_driver_lock, so this issue does not matter for changing the intel_pstate operation mode, but it theoretically can cause a crash to occur on CPU device hot removal (which currently can only happen in virt, but it is formally supported nevertheless). Address this issue by modifying update_qos_request() to drop the reference to the policy later.(CVE-2025-40194)",
  "id": "OESA-2025-2764",
  "modified": "2026-08-06T11:09:53Z",
  "published": "2025-11-28T11:09:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-2764"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22121"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39751"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40019"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40183"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40194"
    }
  ],
  "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-2025-22121",
    "CVE-2025-39751",
    "CVE-2025-40019",
    "CVE-2025-40183",
    "CVE-2025-40194"
  ]
}

CVE-2025-22121 (GCVE-0-2025-22121)

Vulnerability from cvelistv5 – Published: 2025-04-16 14:13 – Updated: 2026-09-08 08:41

Title

ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all() There's issue as follows: BUG: KASAN: use-after-free in ext4_xattr_inode_dec_ref_all+0x6ff/0x790 Read of size 4 at addr ffff88807b003000 by task syz-executor.0/15172 CPU: 3 PID: 15172 Comm: syz-executor.0 Call Trace: __dump_stack lib/dump_stack.c:82 [inline] dump_stack+0xbe/0xfd lib/dump_stack.c:123 print_address_description.constprop.0+0x1e/0x280 mm/kasan/report.c:400 __kasan_report.cold+0x6c/0x84 mm/kasan/report.c:560 kasan_report+0x3a/0x50 mm/kasan/report.c:585 ext4_xattr_inode_dec_ref_all+0x6ff/0x790 fs/ext4/xattr.c:1137 ext4_xattr_delete_inode+0x4c7/0xda0 fs/ext4/xattr.c:2896 ext4_evict_inode+0xb3b/0x1670 fs/ext4/inode.c:323 evict+0x39f/0x880 fs/inode.c:622 iput_final fs/inode.c:1746 [inline] iput fs/inode.c:1772 [inline] iput+0x525/0x6c0 fs/inode.c:1758 ext4_orphan_cleanup fs/ext4/super.c:3298 [inline] ext4_fill_super+0x8c57/0xba40 fs/ext4/super.c:5300 mount_bdev+0x355/0x410 fs/super.c:1446 legacy_get_tree+0xfe/0x220 fs/fs_context.c:611 vfs_get_tree+0x8d/0x2f0 fs/super.c:1576 do_new_mount fs/namespace.c:2983 [inline] path_mount+0x119a/0x1ad0 fs/namespace.c:3316 do_mount+0xfc/0x110 fs/namespace.c:3329 __do_sys_mount fs/namespace.c:3540 [inline] __se_sys_mount+0x219/0x2e0 fs/namespace.c:3514 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 Memory state around the buggy address: ffff88807b002f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88807b002f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88807b003000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88807b003080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88807b003100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff Above issue happens as ext4_xattr_delete_inode() isn't check xattr is valid if xattr is in inode. To solve above issue call xattr_check_inode() check if xattr if valid in inode. In fact, we can directly verify in ext4_iget_extra_inode(), so that there is no divergent verification.

Severity

8.4 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/27202452b0bc942fd…
https://git.kernel.org/stable/c/b374e9ecc92aaa7fb…
https://git.kernel.org/stable/c/c000a8a9b5343a5ef…
https://git.kernel.org/stable/c/3c591353956ffcace…
https://git.kernel.org/stable/c/098927a13fd918bd7…
https://git.kernel.org/stable/c/0c8fbb6ffb3c8f516…
https://git.kernel.org/stable/c/5701875f9609b000d…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

5 products

Vendor	Product	Version
Linux	Linux	Affected: e50e5129f384ae282adebfb561189cdb19b81cee , < 27202452b0bc942fdc3db72a44c4dcdab96d5b56 (git) Affected: e50e5129f384ae282adebfb561189cdb19b81cee , < b374e9ecc92aaa7fb2ab221ee3ff5451118ab566 (git) Affected: e50e5129f384ae282adebfb561189cdb19b81cee , < c000a8a9b5343a5ef867df173c6349672dacbd0f (git) Affected: e50e5129f384ae282adebfb561189cdb19b81cee , < 3c591353956ffcace2cc74d09930774afed60619 (git) Affected: e50e5129f384ae282adebfb561189cdb19b81cee , < 098927a13fd918bd7c64c2de905350a1ad7b4a3a (git) Affected: e50e5129f384ae282adebfb561189cdb19b81cee , < 0c8fbb6ffb3c8f5164572ca88e4ccb6cd6a41ca8 (git) Affected: e50e5129f384ae282adebfb561189cdb19b81cee , < 5701875f9609b000d91351eaa6bfd97fe2f157f4 (git)
Linux	Linux	Affected: 4.13 Unaffected: 0 , < 4.13 (semver) Unaffected: 5.10.248 , ≤ 5.10.* (semver) Unaffected: 5.15.198 , ≤ 5.15.* (semver) Unaffected: 6.1.161 , ≤ 6.1.* (semver) Unaffected: 6.6.120 , ≤ 6.6.* (semver) Unaffected: 6.12.59 , ≤ 6.12.* (semver) Unaffected: 6.14.2 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.6 , < * (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-08T08:41:23.437Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/inode.c",
            "fs/ext4/xattr.c",
            "fs/ext4/xattr.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "27202452b0bc942fdc3db72a44c4dcdab96d5b56",
              "status": "affected",
              "version": "e50e5129f384ae282adebfb561189cdb19b81cee",
              "versionType": "git"
            },
            {
              "lessThan": "b374e9ecc92aaa7fb2ab221ee3ff5451118ab566",
              "status": "affected",
              "version": "e50e5129f384ae282adebfb561189cdb19b81cee",
              "versionType": "git"
            },
            {
              "lessThan": "c000a8a9b5343a5ef867df173c6349672dacbd0f",
              "status": "affected",
              "version": "e50e5129f384ae282adebfb561189cdb19b81cee",
              "versionType": "git"
            },
            {
              "lessThan": "3c591353956ffcace2cc74d09930774afed60619",
              "status": "affected",
              "version": "e50e5129f384ae282adebfb561189cdb19b81cee",
              "versionType": "git"
            },
            {
              "lessThan": "098927a13fd918bd7c64c2de905350a1ad7b4a3a",
              "status": "affected",
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            },
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              "version": "5.15.198",
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            },
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()\n\nThere\u0027s issue as follows:\nBUG: KASAN: use-after-free in ext4_xattr_inode_dec_ref_all+0x6ff/0x790\nRead of size 4 at addr ffff88807b003000 by task syz-executor.0/15172\n\nCPU: 3 PID: 15172 Comm: syz-executor.0\nCall Trace:\n __dump_stack lib/dump_stack.c:82 [inline]\n dump_stack+0xbe/0xfd lib/dump_stack.c:123\n print_address_description.constprop.0+0x1e/0x280 mm/kasan/report.c:400\n __kasan_report.cold+0x6c/0x84 mm/kasan/report.c:560\n kasan_report+0x3a/0x50 mm/kasan/report.c:585\n ext4_xattr_inode_dec_ref_all+0x6ff/0x790 fs/ext4/xattr.c:1137\n ext4_xattr_delete_inode+0x4c7/0xda0 fs/ext4/xattr.c:2896\n ext4_evict_inode+0xb3b/0x1670 fs/ext4/inode.c:323\n evict+0x39f/0x880 fs/inode.c:622\n iput_final fs/inode.c:1746 [inline]\n iput fs/inode.c:1772 [inline]\n iput+0x525/0x6c0 fs/inode.c:1758\n ext4_orphan_cleanup fs/ext4/super.c:3298 [inline]\n ext4_fill_super+0x8c57/0xba40 fs/ext4/super.c:5300\n mount_bdev+0x355/0x410 fs/super.c:1446\n legacy_get_tree+0xfe/0x220 fs/fs_context.c:611\n vfs_get_tree+0x8d/0x2f0 fs/super.c:1576\n do_new_mount fs/namespace.c:2983 [inline]\n path_mount+0x119a/0x1ad0 fs/namespace.c:3316\n do_mount+0xfc/0x110 fs/namespace.c:3329\n __do_sys_mount fs/namespace.c:3540 [inline]\n __se_sys_mount+0x219/0x2e0 fs/namespace.c:3514\n do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46\n entry_SYSCALL_64_after_hwframe+0x67/0xd1\n\nMemory state around the buggy address:\n ffff88807b002f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffff88807b002f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n\u003effff88807b003000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff\n                   ^\n ffff88807b003080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff\n ffff88807b003100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff\n\nAbove issue happens as ext4_xattr_delete_inode() isn\u0027t check xattr\nis valid if xattr is in inode.\nTo solve above issue call xattr_check_inode() check if xattr if valid\nin inode. In fact, we can directly verify in ext4_iget_extra_inode(),\nso that there is no divergent verification."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - Exploitation requires the attacker-crafted ext4 image to be presented to the local kernel as a block device \u2014 a USB stick on an automounting desktop/kiosk, a loop/NBD/iSCSI-backed device, or a container/VM disk image \u2014 reaching the bug through the mount(2) syscall path. No network protocol handler is involved, and physical access is not strictly required since loop and network-block-backed images work equally well.\nAC:L - The attacker fully controls every byte of the on-disk image, including the ea_inode feature bit, the inode\u0027s i_extra_isize, the xattr magic, the entry array, and which inode sits last in its inode-table block so the walk runs off the end of the buffer_head page allocation. The corruption is deterministic at mount during orphan cleanup with no race to win and no dependency on kernel memory layout the attacker cannot influence.\nPR:N - The attacker needs no account or privilege on the target system \u2014 they only supply the malicious filesystem image, which is then mounted by root, by an automount daemon such as udisks2, or by a container/VM image-handling service acting on the attacker\u0027s data. All privileged operations along the path are performed by the victim system on the attacker\u0027s behalf.\nUI:N - On the common desktop, kiosk, and appliance configurations where udisks2/systemd automounts removable media, plugging in the device triggers the mount with no human participation, and the bug fires immediately during ext4_orphan_cleanup() inside ext4_fill_super() rather than requiring any subsequent file access. Container and VM image-mount services likewise mount attacker-supplied images unattended.\nS:U - The out-of-bounds read and write occur in kernel heap memory within the same kernel security authority that hosts the vulnerable ext4 code. There is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The loop performs an unbounded (pre-mitigation) or several-byte-past-the-allocation (post-mitigation) out-of-bounds read of adjacent kernel heap memory past the inode-table buffer_head, and those leaked bytes are consumed as e_value_inum/e_hash/e_value_size values that steer subsequent inode lookups and quota accounting, making adjacent kernel memory contents observable through filesystem state and error output.\nI:H - `entry-\u003ee_value_inum = 0; entry-\u003ee_value_size = 0;` writes 8 zero bytes through an out-of-bounds entry pointer into adjacent kernel heap memory, and the OOB-derived inode numbers drive ext4_xattr_inode_dec_ref()/ext4_orphan_add() to decrement refcounts and orphan arbitrary inodes. This combination of controlled kernel heap zeroing plus arbitrary on-disk metadata corruption is a usable memory-corruption primitive, not a bounded misread.\nA:H - KASAN reproduces the issue as a use-after-free/out-of-bounds access past a page-sized buffer_head allocation during mount; on a production kernel the same access corrupts adjacent slab memory and the bogus inode ref-count decrements trigger EXT4-fs errors and oops/panic. The crash occurs during ext4_fill_super() and can be repeated on every mount attempt."
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      "title": "ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()",
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    "datePublished": "2025-04-16T14:13:05.894Z",
    "dateReserved": "2024-12-29T08:45:45.823Z",
    "dateUpdated": "2026-09-08T08:41:23.437Z",
    "state": "PUBLISHED"
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}

CVE-2025-39751 (GCVE-0-2025-39751)

Vulnerability from cvelistv5 – Published: 2025-09-11 16:52 – Updated: 2025-10-06 09:54

This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

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{
  "containers": {
    "cna": {
      "providerMetadata": {
        "dateUpdated": "2025-10-06T09:54:34.568Z",
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      },
      "rejectedReasons": [
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    "datePublished": "2025-09-11T16:52:22.651Z",
    "dateRejected": "2025-10-06T09:54:34.568Z",
    "dateReserved": "2025-04-16T07:20:57.125Z",
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}

CVE-2025-40019 (GCVE-0-2025-40019)

Vulnerability from cvelistv5 – Published: 2025-10-24 11:44 – Updated: 2026-05-11 21:40

Title

crypto: essiv - Check ssize for decryption and in-place encryption

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: essiv - Check ssize for decryption and in-place encryption Move the ssize check to the start in essiv_aead_crypt so that it's also checked for decryption and in-place encryption.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/29294dd6f1e7acf52…
https://git.kernel.org/stable/c/71f03f8f72d9c70ff…
https://git.kernel.org/stable/c/df58651968f82344a…
https://git.kernel.org/stable/c/248ff2797ff52a8cb…
https://git.kernel.org/stable/c/f37e7860dc5e94c70…
https://git.kernel.org/stable/c/dc4c854a5e7453c46…
https://git.kernel.org/stable/c/da7afb01ba05577ba…
https://git.kernel.org/stable/c/6bb73db6948c2de23…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: be1eb7f78aa8fbe34779c56c266ccd0364604e71 , < 29294dd6f1e7acf527255fb136ffde6602c3a129 (git) Affected: be1eb7f78aa8fbe34779c56c266ccd0364604e71 , < 71f03f8f72d9c70ffba76980e78b38c180e61589 (git) Affected: be1eb7f78aa8fbe34779c56c266ccd0364604e71 , < df58651968f82344a0ed2afdafd20ecfc55ff548 (git) Affected: be1eb7f78aa8fbe34779c56c266ccd0364604e71 , < 248ff2797ff52a8cbf86507f9583437443bf7685 (git) Affected: be1eb7f78aa8fbe34779c56c266ccd0364604e71 , < f37e7860dc5e94c70b4a3e38a5809181310ea9ac (git) Affected: be1eb7f78aa8fbe34779c56c266ccd0364604e71 , < dc4c854a5e7453c465fa73b153eba4ef2a240abe (git) Affected: be1eb7f78aa8fbe34779c56c266ccd0364604e71 , < da7afb01ba05577ba3629f7f4824205550644986 (git) Affected: be1eb7f78aa8fbe34779c56c266ccd0364604e71 , < 6bb73db6948c2de23e407fe1b7ef94bf02b7529f (git)
Linux	Linux	Affected: 5.4 Unaffected: 0 , < 5.4 (semver) Unaffected: 5.4.301 , ≤ 5.4.* (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
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        {
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          "programFiles": [
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        }
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    "dateReserved": "2025-04-16T07:20:57.152Z",
    "dateUpdated": "2026-05-11T21:40:54.499Z",
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CVE-2025-40183 (GCVE-0-2025-40183)

Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-08-05 12:08

Title

bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6}

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6} Cilium has a BPF egress gateway feature which forces outgoing K8s Pod traffic to pass through dedicated egress gateways which then SNAT the traffic in order to interact with stable IPs outside the cluster. The traffic is directed to the gateway via vxlan tunnel in collect md mode. A recent BPF change utilized the bpf_redirect_neigh() helper to forward packets after the arrival and decap on vxlan, which turned out over time that the kmalloc-256 slab usage in kernel was ever-increasing. The issue was that vxlan allocates the metadata_dst object and attaches it through a fake dst entry to the skb. The latter was never released though given bpf_redirect_neigh() was merely setting the new dst entry via skb_dst_set() without dropping an existing one first.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Assigner

Linux mitre root

References

7 references

URL	Tags
https://git.kernel.org/stable/c/3fba965a9aac0fa3c…
https://git.kernel.org/stable/c/057764172fcc6ee2c…
https://git.kernel.org/stable/c/2e67c2037382abb56…
https://git.kernel.org/stable/c/b6bfe44b6dbb14a31…
https://git.kernel.org/stable/c/f36a305d30f557306…
https://git.kernel.org/stable/c/7404ce888a45eb7da…
https://git.kernel.org/stable/c/23f3770e1a53e6c7a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b4ab31414970a7a03a5d55d75083f2c101a30592 , < 3fba965a9aac0fa3cbd8138436a37af9ab466d79 (git) Affected: b4ab31414970a7a03a5d55d75083f2c101a30592 , < 057764172fcc6ee2ccb6c41351a55a9f054dc8fd (git) Affected: b4ab31414970a7a03a5d55d75083f2c101a30592 , < 2e67c2037382abb56497bb9d7b7e10be04eb5598 (git) Affected: b4ab31414970a7a03a5d55d75083f2c101a30592 , < b6bfe44b6dbb14a31d86c475cdc9c7689534fb09 (git) Affected: b4ab31414970a7a03a5d55d75083f2c101a30592 , < f36a305d30f557306d87c787ddffe094ac5dac89 (git) Affected: b4ab31414970a7a03a5d55d75083f2c101a30592 , < 7404ce888a45eb7da0508b7cbbe6f2e95302eeb8 (git) Affected: b4ab31414970a7a03a5d55d75083f2c101a30592 , < 23f3770e1a53e6c7a553135011f547209e141e72 (git)
Linux	Linux	Affected: 5.10 Unaffected: 0 , < 5.10 (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2025-40194 (GCVE-0-2025-40194)

Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-05-11 21:44

Title

cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()

Summary

In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() The cpufreq_cpu_put() call in update_qos_request() takes place too early because the latter subsequently calls freq_qos_update_request() that indirectly accesses the policy object in question through the QoS request object passed to it. Fortunately, update_qos_request() is called under intel_pstate_driver_lock, so this issue does not matter for changing the intel_pstate operation mode, but it theoretically can cause a crash to occur on CPU device hot removal (which currently can only happen in virt, but it is formally supported nevertheless). Address this issue by modifying update_qos_request() to drop the reference to the policy later.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/15ac9579ebdaf22a3…
https://git.kernel.org/stable/c/bc26564bcc659beb6…
https://git.kernel.org/stable/c/ad4e8f9bdbef11a19…
https://git.kernel.org/stable/c/0a58d3e77b22b087a…
https://git.kernel.org/stable/c/69a18ff6c60e8e113…
https://git.kernel.org/stable/c/ba63d4e9857a72a89…
https://git.kernel.org/stable/c/57e4a6aadf12578b9…
https://git.kernel.org/stable/c/69e5d50fcf4093fb3…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: da5c504c7aae96db68c4b38e2564a88e91842d89 , < 15ac9579ebdaf22a37d7f60b3a8efc1029732ef9 (git) Affected: da5c504c7aae96db68c4b38e2564a88e91842d89 , < bc26564bcc659beb6d977cd6eb394041ec2f2851 (git) Affected: da5c504c7aae96db68c4b38e2564a88e91842d89 , < ad4e8f9bdbef11a19b7cb93e7f313bf59bdcc3b4 (git) Affected: da5c504c7aae96db68c4b38e2564a88e91842d89 , < 0a58d3e77b22b087a57831c87cafd360e144a5bd (git) Affected: da5c504c7aae96db68c4b38e2564a88e91842d89 , < 69a18ff6c60e8e113420f15355fad862cb45d38e (git) Affected: da5c504c7aae96db68c4b38e2564a88e91842d89 , < ba63d4e9857a72a89e71a4eff9f2cc8c283e94c3 (git) Affected: da5c504c7aae96db68c4b38e2564a88e91842d89 , < 57e4a6aadf12578b96a038373cffd54b3a58b092 (git) Affected: da5c504c7aae96db68c4b38e2564a88e91842d89 , < 69e5d50fcf4093fb3f9f41c4f931f12c2ca8c467 (git)
Linux	Linux	Affected: 5.4 Unaffected: 0 , < 5.4 (semver) Unaffected: 5.4.301 , ≤ 5.4.* (semver) Unaffected: 5.10.246 , ≤ 5.10.* (semver) Unaffected: 5.15.195 , ≤ 5.15.* (semver) Unaffected: 6.1.157 , ≤ 6.1.* (semver) Unaffected: 6.6.113 , ≤ 6.6.* (semver) Unaffected: 6.12.54 , ≤ 6.12.* (semver) Unaffected: 6.17.4 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.195",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.157",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.113",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.54",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.4",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()\n\nThe cpufreq_cpu_put() call in update_qos_request() takes place too early\nbecause the latter subsequently calls freq_qos_update_request() that\nindirectly accesses the policy object in question through the QoS request\nobject passed to it.\n\nFortunately, update_qos_request() is called under intel_pstate_driver_lock,\nso this issue does not matter for changing the intel_pstate operation\nmode, but it theoretically can cause a crash to occur on CPU device hot\nremoval (which currently can only happen in virt, but it is formally\nsupported nevertheless).\n\nAddress this issue by modifying update_qos_request() to drop the\nreference to the policy later."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:44:34.728Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/15ac9579ebdaf22a37d7f60b3a8efc1029732ef9"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc26564bcc659beb6d977cd6eb394041ec2f2851"
        },
        {
          "url": "https://git.kernel.org/stable/c/ad4e8f9bdbef11a19b7cb93e7f313bf59bdcc3b4"
        },
        {
          "url": "https://git.kernel.org/stable/c/0a58d3e77b22b087a57831c87cafd360e144a5bd"
        },
        {
          "url": "https://git.kernel.org/stable/c/69a18ff6c60e8e113420f15355fad862cb45d38e"
        },
        {
          "url": "https://git.kernel.org/stable/c/ba63d4e9857a72a89e71a4eff9f2cc8c283e94c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/57e4a6aadf12578b96a038373cffd54b3a58b092"
        },
        {
          "url": "https://git.kernel.org/stable/c/69e5d50fcf4093fb3f9f41c4f931f12c2ca8c467"
        }
      ],
      "title": "cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40194",
    "datePublished": "2025-11-12T21:56:32.025Z",
    "dateReserved": "2025-04-16T07:20:57.178Z",
    "dateUpdated": "2026-05-11T21:44:34.728Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

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.

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.

Action not permitted

oesa-2025-2764

Vulnerability from osv_openeuler

CVE-2025-22121 (GCVE-0-2025-22121)

CVE-2025-39751 (GCVE-0-2025-39751)

CVE-2025-40019 (GCVE-0-2025-40019)

CVE-2025-40183 (GCVE-0-2025-40183)

CVE-2025-40194 (GCVE-0-2025-40194)

Tags

Sightings

Nomenclature

Related by attack behaviour