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CVE-2025-39780 sched/ext: Fix invalid task state transitions on class switch

🗓️ 11 Sep 2025 16:56:31Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 11 Views

Linux kernel sched_ext: fix invalid task state transitions during class switch by skipping dead tasks.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/sched/ext.c"
    ],
    "versions": [
      {
        "version": "a8532fac7b5d27b8d62008a89593dccb6f9786ef",
        "lessThan": "786f6314604b34c3e7de5f733f4e08e35c448a50",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a8532fac7b5d27b8d62008a89593dccb6f9786ef",
        "lessThan": "6a32cbe95029ebe21cc08349fd7ef2a3d32d2043",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a8532fac7b5d27b8d62008a89593dccb6f9786ef",
        "lessThan": "ddf7233fcab6c247379d0928d46cc316ee122229",
        "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.c"
    ],
    "versions": [
      {
        "version": "6.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.44",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.4",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 21:36Current
EPSS0.00018
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