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CVE-2026-98866 sched/cache: Introduce task_struct->sched_cache_grp to fix UAF

🗓️ 18 Oct 2026 15:51:27Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 18 Views

Use-after-free in the Linux kernel scheduler fixed by adding task_struct->sched_cache_grp.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-98866
18 Oct 202615:51
–cve
debiancve
Debian CVE
CVE-2026-98866
18 Oct 202615:51
–debiancve
euvd
EUVD
EUVD-2026-103806
18 Oct 202615:51
–euvd
nvd
NVD
CVE-2026-98866
18 Oct 202616:17
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-98866
18 Oct 202617:47
–osv_debian
ptsecurity
Positive Technologies
PT-2026-117085
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": [
      "fs/exec.c",
      "include/linux/sched.h",
      "kernel/exit.c",
      "kernel/fork.c",
      "kernel/sched/fair.c"
    ],
    "versions": [
      {
        "version": "df0d98475954d655571979aa061ecb07d7e00392",
        "lessThan": "9436130e6da72af63289a4acb3aa0c1df07a3928",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "df0d98475954d655571979aa061ecb07d7e00392",
        "lessThan": "b636fef85bda7d1bab9c0a45067ab1508d79d946",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/exec.c",
      "include/linux/sched.h",
      "kernel/exit.c",
      "kernel/fork.c",
      "kernel/sched/fair.c"
    ],
    "versions": [
      {
        "version": "7.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "7.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.10",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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