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CVE-2026-45999 erofs: fix unsigned underflow in z_erofs_lz4_handle_overlap()

🗓️ 27 May 2026 12:55:53Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 42 Views

Linux kernel erofs fixes unsigned underflow in z_erofs_lz4_handle_overlap to stop outpages wrapping.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/erofs/decompressor.c"
    ],
    "versions": [
      {
        "version": "598162d050801e556750defff4ddab499e5d76ed",
        "lessThan": "778acd52e9497806fbd2cea7f770c41d6850fc48",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "598162d050801e556750defff4ddab499e5d76ed",
        "lessThan": "118ff71ff09ebaf323a09af9e911517321a299f4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "598162d050801e556750defff4ddab499e5d76ed",
        "lessThan": "43a878639b90e9721ffa5eb616a7e6d8454adef3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "598162d050801e556750defff4ddab499e5d76ed",
        "lessThan": "f1374fa6e57fd836623668d782ded9244cfd2938",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "598162d050801e556750defff4ddab499e5d76ed",
        "lessThan": "c9ce18e6bb2c467ec85756dc7989b547b7584fee",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "598162d050801e556750defff4ddab499e5d76ed",
        "lessThan": "bbbbb3f0d7864238a8da2a94cd6ec013fee06a2e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "598162d050801e556750defff4ddab499e5d76ed",
        "lessThan": "21e161de2dc660b1bb70ef5b156ab8e6e1cca3ab",
        "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/erofs/decompressor.c"
    ],
    "versions": [
      {
        "version": "5.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.13",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.140",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.88",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.30",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.4",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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19 Jun 2026 11:58Current
CVSS 3.17.1
EPSS0.00131
42