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CVE-2026-46121 mm/damon/sysfs-schemes: protect memcg_path kfree() with damon_sysfs_lock

🗓️ 28 May 2026 09:35:36Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 45 Views

Protect memcg path reads and writes in damon sysfs with damon_sysfs_lock to prevent use after free.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/damon/sysfs-schemes.c"
    ],
    "versions": [
      {
        "version": "490a43d07f1663d827e802720d30cbc0494e4f81",
        "lessThan": "b1e9f2d5870776347edef927f9bb3ea19b8e3abb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "c5d5b0047b0c0f304608f3824139f7bd34c48413",
        "lessThan": "c88802d0e8edd14b6cd2daf3000f99adbc4c85c5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4f489fe6afb395dbc79840efa3c05440b760d883",
        "lessThan": "eafd6f5372d29b0dd213799b92c2c9c7ad31d7da",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4f489fe6afb395dbc79840efa3c05440b760d883",
        "lessThan": "baecc45ad60e621ef14d6c1e7f41ef36bbfdf910",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4f489fe6afb395dbc79840efa3c05440b760d883",
        "lessThan": "1e68eb96e8beb1abefd12dd22c5637795d8a877e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4a158ac0538dd5695eeaa00aa0720d711f3e4ef1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.6.96",
        "lessThan": "6.6.140",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.12.36",
        "lessThan": "6.12.88",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.15.5",
        "lessThan": "6.16",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/damon/sysfs-schemes.c"
    ],
    "versions": [
      {
        "version": "6.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.16",
        "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": "7.0.7",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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