CVE-2026-99105

Что произошло

In the Linux kernel, the following vulnerability has been resolved: sched_ext: Fix stall when a task enqueued with SCX_ENQ_LAST lands back on its CPU's local DSQ With SCX_OPS_ENQ_LAST, the last runnable task on a CPU is passed to ops.enqueue() instead of being kept running. Exiting tasks without SCX_OPS_ENQ_EXITING, migration disabled tasks without SCX_OPS_ENQ_MIGRATION_DISABLED and tasks on an offline rq skip ops.enqueue() and go straight to the local DSQ. This happens in put_prev_task_scx() after the pick has settled on idle, so nothing reschedules the CPU, which idles with the task queued until an unrelated wakeup lands on it or the watchdog fires. scx_mitosis, which sets SCX_OPS_ENQ_LAST without SCX_OPS_ENQ_EXITING, hit this during mass cgroup teardown: exiting tasks stuck in exit_mmap() for over 40 seconds. A task put on the local DSQ runs, as anywhere else. If the SCX_ENQ_LAST enqueue left the task on this CPU's local DSQ, set need_resched on the task being switched in, as proxy_resched_idle() does. resched_curr() would flag the task being put instead, and __schedule() clears that right after the pick.

Что делать

dpkg-query -W -f='${Package}	${Version}\n'

rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'

Get-HotFix | Select-Object HotFixID, InstalledOn

Продукты и затронутые версии

{
  "status": "affected",
  "version": "f0e1a0643a59bf1f922fa209cec86a170b784f3f",
  "lessThan": "ea47eec058fc1b6a3c3c54870d24a8bdcb3e204d",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "f0e1a0643a59bf1f922fa209cec86a170b784f3f",
  "lessThan": "8d891c218016b6145993e082e7f732cb69dd0e29",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "f0e1a0643a59bf1f922fa209cec86a170b784f3f",
  "lessThan": "396ba6f04da3fd1fb5a3d1c9535bef3f967f4e59",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "f0e1a0643a59bf1f922fa209cec86a170b784f3f",
  "lessThan": "7a9df76679633cf26e0fea882a684012c6ec245a",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "6.12"
}

{
  "status": "unaffected",
  "version": "0",
  "lessThan": "6.12",
  "versionType": "semver"
}

{
  "status": "unaffected",
  "version": "6.12.115",
  "versionType": "semver",
  "lessThanOrEqual": "6.12.*"
}

{
  "status": "unaffected",
  "version": "6.18.59",
  "versionType": "semver",
  "lessThanOrEqual": "6.18.*"
}

{
  "status": "unaffected",
  "version": "7.2.13",
  "versionType": "semver",
  "lessThanOrEqual": "7.2.*"
}

{
  "status": "unaffected",
  "version": "7.3",
  "versionType": "original_commit_for_fix",
  "lessThanOrEqual": "*"
}

CVSS: оценки и векторы

Оценка CVSS отсутствует.

Источники и ссылки

{
  "cwes": [],
  "epss": {
    "source": "epss",
    "received_at": "2026-11-01T21:13:22.712814+00:00"
  },
  "title": {
    "source": "cve",
    "received_at": "2026-10-30T12:57:41.993161+00:00"
  },
  "scores": [],
  "status": {
    "source": "cve",
    "received_at": "2026-10-30T12:57:41.993161+00:00"
  },
  "affected": [
    "cve"
  ],
  "published": {
    "source": "cve",
    "received_at": "2026-10-30T12:57:41.993161+00:00"
  },
  "solutions": [],
  "percentile": {
    "source": "epss",
    "received_at": "2026-11-01T21:13:22.712814+00:00"
  },
  "references": [
    "cve",
    "ghsa",
    "nvd"
  ],
  "description": {
    "source": "cve",
    "received_at": "2026-10-30T12:57:41.993161+00:00"
  },
  "workarounds": [],
  "configurations": []
}

Хронология записи

1. Данные обновлены02.11.2026, 00:13
2. Данные обновлены31.10.2026, 12:00
3. Данные обновлены30.10.2026, 15:58
4. Данные обновлены28.10.2026, 23:51
5. Данные обновлены28.10.2026, 18:00
6. Опубликована28.10.2026, 15:17

Личная заметка и статус

Другие CVE того же продукта