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CVE-2025-38621 md: make rdev_addable usable for rcu mode

🗓️ 22 Aug 2025 16:00:30Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

CVE-2025-38621: md rdev_addable fix for rcu mode; avoids NULL mddev dereference using READ_ONCE

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/md/md.c"
    ],
    "versions": [
      {
        "version": "bc08041b32abe6c9824f78735bac22018eabfc06",
        "lessThan": "b5fbe940862339cdcc34dea7a057ad18d18fa137",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bc08041b32abe6c9824f78735bac22018eabfc06",
        "lessThan": "13017b427118f4311471ee47df74872372ca8482",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/md/md.c"
    ],
    "versions": [
      {
        "version": "6.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.1",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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