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CVE-2026-74731 sched_ext: Skip sub-disable teardown for never-linked sub-schedulers

🗓️ 22 Aug 2026 15:33:20Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

Use-after-free in Linux kernel sched_ext when unlinked sub-scheduler teardown races root disable.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-74731
22 Aug 202616:29
circl
cve
CVE
CVE-2026-74731
22 Aug 202615:33
cve
debiancve
Debian CVE
CVE-2026-74731
22 Aug 202615:33
debiancve
euvd
EUVD
EUVD-2026-64418
22 Aug 202615:33
euvd
nvd
NVD
CVE-2026-74731
22 Aug 202616:16
nvd
ptsecurity
Positive Technologies
PT-2026-79736
22 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/sched/ext/ext.c"
    ],
    "versions": [
      {
        "version": "337ec00b1d9c676f637651c2cefddb8612b867ee",
        "lessThan": "6428093a4a986c38c9089b5eb32b56d914ef437a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "337ec00b1d9c676f637651c2cefddb8612b867ee",
        "lessThan": "8c13364db9c9a43ed286f3a8d0fb9477b1adc43c",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/sched/ext/ext.c"
    ],
    "versions": [
      {
        "version": "7.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "7.1",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.9",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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