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CVE-2026-45899 ext4: drop extent cache when splitting extent fails

🗓️ 27 May 2026 12:17:08Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 42 Views

Ext4 split extent failure may leave stale extents; drop remaining extent cache entries on error.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/ext4/extents.c"
    ],
    "versions": [
      {
        "version": "107a7bd31ac003e42c0f966aa8e5b26947de6024",
        "lessThan": "6e54f8dfee359bbd58086c883ea8cffd5312999d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "107a7bd31ac003e42c0f966aa8e5b26947de6024",
        "lessThan": "337506dc652383c80839edb8d8dcdd8ff2129b4f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "107a7bd31ac003e42c0f966aa8e5b26947de6024",
        "lessThan": "dc7c9b9d03a59a7fe483574531327e650a4b4adc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "107a7bd31ac003e42c0f966aa8e5b26947de6024",
        "lessThan": "120c6bd7ca9d3e80a968b758cbb3fbd67570f132",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "107a7bd31ac003e42c0f966aa8e5b26947de6024",
        "lessThan": "808f3191498f300174523c54cab101e18795ae4e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "107a7bd31ac003e42c0f966aa8e5b26947de6024",
        "lessThan": "31bf37cf53ede8145e2bc62da803d4506da92975",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "107a7bd31ac003e42c0f966aa8e5b26947de6024",
        "lessThan": "79b592e8f1b435796cbc2722190368e3e8ffd7a1",
        "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/ext4/extents.c"
    ],
    "versions": [
      {
        "version": "3.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.253",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.203",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.130",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.14",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.4",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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