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CVE-2023-53531 null_blk: fix poll request timeout handling

🗓️ 01 Oct 2025 11:46:15Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

Linux kernel fixes a null_blk poll timeout race to prevent kernel panic by marking requests complete under poll_lock.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/block/null_blk/main.c"
    ],
    "versions": [
      {
        "version": "0a593fbbc245a85940ed34caa3aa1e4cb060c54b",
        "lessThan": "a0b4a0666beacfe8add9c71d8922475541dbae73",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0a593fbbc245a85940ed34caa3aa1e4cb060c54b",
        "lessThan": "a7cb2e709f2927cc3c76781df3e45de2381b3b9d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0a593fbbc245a85940ed34caa3aa1e4cb060c54b",
        "lessThan": "5a26e45edb4690d58406178b5a9ea4c6dcf2c105",
        "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/block/null_blk/main.c"
    ],
    "versions": [
      {
        "version": "5.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.54",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.5.4",
        "lessThanOrEqual": "6.5.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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