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CVE-2025-68794 iomap: adjust read range correctly for non-block-aligned positions

🗓️ 13 Jan 2026 15:29:05Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 18 Views

CVE-2025-68794 fixes iomap read range for non-block-aligned positions to prevent incorrect reads.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/iomap/buffered-io.c"
    ],
    "versions": [
      {
        "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
        "lessThan": "82b60ffbb532d919959702768dca04c3c0500ae5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
        "lessThan": "12053695c8ef5410e8cc6c9ed4c0db9cd9c82b3e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
        "lessThan": "142194fb21afe964d2d194cab1fc357cbf87e899",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9dc55f1389f9569acf9659e58dd836a9c70df217",
        "lessThan": "7aa6bc3e8766990824f66ca76c19596ce10daf3e",
        "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/iomap/buffered-io.c"
    ],
    "versions": [
      {
        "version": "4.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.120",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.64",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.3",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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