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CVE-2021-47178 scsi: target: core: Avoid smp_processor_id() in preemptible code

🗓️ 25 Mar 2024 09:16:28Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

Resolve CVE-2021-47178, scsi core vulnerability workaround, observed when running blktests on TCMU devices, resolved using raw_smp_processor_id for performance improvement

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/target/target_core_transport.c"
    ],
    "versions": [
      {
        "version": "008b936bbde3e87a611b3828a0d5d2a4f99026a0",
        "lessThan": "a222d2794c53f8165de20aa91b39e35e4b72bce9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1526d9f10c6184031e42afad0adbdde1213e8ad1",
        "lessThan": "a20b6eaf4f35046a429cde57bee7eb5f13d6857f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1526d9f10c6184031e42afad0adbdde1213e8ad1",
        "lessThan": "70ca3c57ff914113f681e657634f7fbfa68e1ad1",
        "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/target/target_core_transport.c"
    ],
    "versions": [
      {
        "version": "5.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.12.9",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.13",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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