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CVE-2022-50456 btrfs: fix resolving backrefs for inline extent followed by prealloc

🗓️ 01 Oct 2025 11:45:29Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Fix resolving backrefs for inline extents followed by preallocated extents in Btrfs to prevent invalid offset reads and kernel panics.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/btrfs/backref.c"
    ],
    "versions": [
      {
        "version": "8da6d5815c592b713ecaf4f4f8b631f8359c96c4",
        "lessThan": "c59ee1528b3432ec9dca220567f7eb507820917a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8da6d5815c592b713ecaf4f4f8b631f8359c96c4",
        "lessThan": "0061ab5153fb8bc574b44fbb773680d0ede48c9c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8da6d5815c592b713ecaf4f4f8b631f8359c96c4",
        "lessThan": "99590f29b2b7567fda2b503aa3d81a0d3e09dce5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8da6d5815c592b713ecaf4f4f8b631f8359c96c4",
        "lessThan": "645e2dac6e97f756f28a2f82b2e7bf7f29a68827",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8da6d5815c592b713ecaf4f4f8b631f8359c96c4",
        "lessThan": "a94b90ac1f251d1007c0c43ee289a61b50f2505f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8da6d5815c592b713ecaf4f4f8b631f8359c96c4",
        "lessThan": "560840afc3e63bbe5d9c5ef6b2ecf8f3589adff6",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/btrfs/backref.c"
    ],
    "versions": [
      {
        "version": "3.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.3",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.229",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.163",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.87",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.0.18",
        "lessThanOrEqual": "6.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.4",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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