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CVE-2026-98463 sched_ext: Derive SCX_RQ_IN_WAKEUP from the core enqueue flags

🗓️ 18 Oct 2026 15:15:15Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Linux kernel sched_ext flaw allows use-after-free in run_deferred() via SCX_RQ_IN_WAKEUP.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-98463
18 Oct 202615:15
–cve
debiancve
Debian CVE
CVE-2026-98463
18 Oct 202615:15
–debiancve
euvd
EUVD
EUVD-2026-103703
18 Oct 202615:15
–euvd
nvd
NVD
CVE-2026-98463
18 Oct 202616:16
–nvd
ptsecurity
Positive Technologies
PT-2026-116682
18 Oct 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": "997967adf10ce26c3e7bd89598b3ded62b943052",
        "lessThan": "6c401ae426e20e53a3398a8e79afd0964c0f5110",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "57ccf5ccdc56954f2a91a7f66684fd31c566bde5",
        "lessThan": "3fdf2ceb31e8aff77451e468bc8409e10587916a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "57ccf5ccdc56954f2a91a7f66684fd31c566bde5",
        "lessThan": "df5cdc2c832ca4e8a6d774596b9005558761a403",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ee502c056c4c9cce4c132ccb588e06ffe5b831c1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.18.19",
        "lessThan": "6.18.55",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.19.9",
        "lessThan": "6.20",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "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": "7.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "7.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.55",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.9",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc5",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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