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CVE-2026-53175 inet: frags: fix use-after-free caused by the fqdir_pre_exit() flush

🗓️ 25 Jun 2026 08:38:52Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 34 Views

Kernel fix for use-after-free in inet fragment flush during netns teardown; reset fragment queue pointers.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/inet_fragment.c",
      "net/ipv4/ip_fragment.c"
    ],
    "versions": [
      {
        "version": "22ee4010866da81aeee08e1ea3fddbe418feb212",
        "lessThan": "0e823ca0e7391630784ae7dd0981b7ad170a93d9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "543555954b1ee8d1903a7020324efb41b0c97428",
        "lessThan": "c22599cc90e1cd5f8129c8670bd68a02ff7177b4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c70df25214ac9b32b53e18e6ae3b8f073ffa6903",
        "lessThan": "89b909e9704587bfecc1aab1d37e98faee03b9f9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "006a5035b495dec008805df249f92c22c89c3d2e",
        "lessThan": "010c3313a4d178dc2d3ce958d2e5cb055e2864c1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "006a5035b495dec008805df249f92c22c89c3d2e",
        "lessThan": "32594b09854970d7ba83eb2dc8c69a2edd158c8e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.12.93",
        "lessThan": "6.12.94",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.18.3",
        "lessThan": "6.18.36",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/inet_fragment.c",
      "net/ipv4/ip_fragment.c"
    ],
    "versions": [
      {
        "version": "6.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.94",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.36",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.13",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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