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CVE-2026-53034 bpf, sockmap: Fix af_unix null-ptr-deref in proto update

🗓️ 24 Jun 2026 16:29:41Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 34 Views

Fix af_unix null pointer dereference in proto update due to race between sk_state and unix_peer.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/unix/unix_bpf.c"
    ],
    "versions": [
      {
        "version": "c63829182c37c2d6d0608976d15fa61ebebe9e6b",
        "lessThan": "75b7d3b3f8bd4e59eb3af1b11a43c64c0c2db6f4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c63829182c37c2d6d0608976d15fa61ebebe9e6b",
        "lessThan": "a94d3dd78ee8b63e6b8ad629081c952c93ee5a10",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c63829182c37c2d6d0608976d15fa61ebebe9e6b",
        "lessThan": "4913c94a3adcdbb64c552110c0c243cb1fdbb317",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c63829182c37c2d6d0608976d15fa61ebebe9e6b",
        "lessThan": "041eb6348d73ee5e15fc8161f1eac5a6e8289ca0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c63829182c37c2d6d0608976d15fa61ebebe9e6b",
        "lessThan": "37bfcd164161b47d00b1c3bd20adc816a6977ce0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c63829182c37c2d6d0608976d15fa61ebebe9e6b",
        "lessThan": "dca38b7734d2ea00af4818ff3ae836fab33d5d5a",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/unix/unix_bpf.c"
    ],
    "versions": [
      {
        "version": "5.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.141",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.91",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.33",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.10",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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