CVE-2026-53153

Что произошло

In the Linux kernel, the following vulnerability has been resolved: mm/list_lru: drain before clearing xarray entry on reparent memcg_reparent_list_lrus() clears the dying memcg's xarray entry with xas_store(&xas, NULL) before reparenting its per-node lists into the parent. This opens a window where a concurrent list_lru_del() arriving for the dying memcg sees xa_load() == NULL, walks to the parent in lock_list_lru_of_memcg(), takes the parent's per-node lock, and calls list_del_init() on an item still physically linked on the dying memcg's list. If another in-flight thread holds the dying memcg's per-node lock at the same moment (another list_lru_del, or a list_lru_walk_one running an isolate callback), both threads modify ->next/->prev pointers on the same physical list under different locks. Adjacent items can corrupt each other's links. Fix it by reversing the order: reparent each per-node list and mark the child's list lru dead and then clear the xarray entry. Any concurrent list_lru op that finds the still-set xarray entry either takes the dying memcg's per-node lock (synchronizing with the drain) or sees LONG_MIN and walks to the parent, where the items now live.

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": "fb56fdf8b9a2f7397f8a83dce50189f3f0cf71af",
  "lessThan": "c19ff4351214f059349788e13e70e74325831ff6",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "fb56fdf8b9a2f7397f8a83dce50189f3f0cf71af",
  "lessThan": "2b66496d794e98f7aeec7688573051f22ec40bac",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "fb56fdf8b9a2f7397f8a83dce50189f3f0cf71af",
  "lessThan": "98733f3f0becb1ae0701d021c1748e974e5fa55c",
  "versionType": "git"
}

{
  "status": "affected",
  "version": "6.13"
}

{
  "status": "unaffected",
  "version": "0",
  "lessThan": "6.13",
  "versionType": "semver"
}

{
  "status": "unaffected",
  "version": "6.18.36",
  "versionType": "semver",
  "lessThanOrEqual": "6.18.*"
}

{
  "status": "unaffected",
  "version": "7.0.13",
  "versionType": "semver",
  "lessThanOrEqual": "7.0.*"
}

{
  "status": "unaffected",
  "version": "7.1",
  "versionType": "original_commit_for_fix",
  "lessThanOrEqual": "*"
}

{
  "status": "unaffected",
  "version": "0:6.12.0-211.50.1.el10_2",
  "lessThan": "*",
  "versionType": "rpm"
}

cpe:/o:redhat:enterprise_linux:10.2

cpe:/o:redhat:enterprise_linux:6

cpe:/o:redhat:enterprise_linux:7

cpe:/o:redhat:enterprise_linux:8

cpe:/o:redhat:enterprise_linux:9

CVSS: оценки и векторы

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Источники и ссылки

{
  "cwes": [
    "cve"
  ],
  "epss": {
    "source": "epss",
    "received_at": "2026-11-03T21:14:00.922771+00:00"
  },
  "title": {
    "source": "cve",
    "received_at": "2026-10-28T21:17:57.877365+00:00"
  },
  "scores": [
    "cve"
  ],
  "status": {
    "source": "cve",
    "received_at": "2026-10-28T21:17:57.877365+00:00"
  },
  "affected": [
    "cve"
  ],
  "published": {
    "source": "cve",
    "received_at": "2026-10-28T21:17:57.877365+00:00"
  },
  "solutions": [
    "cve"
  ],
  "percentile": {
    "source": "epss",
    "received_at": "2026-11-03T21:14:00.922771+00:00"
  },
  "references": [
    "cve"
  ],
  "description": {
    "source": "cve",
    "received_at": "2026-10-28T21:17:57.877365+00:00"
  },
  "workarounds": [],
  "configurations": []
}

Хронология записи

1. Данные обновлены04.11.2026, 00:14
2. Данные обновлены03.11.2026, 00:13
3. Данные обновлены02.11.2026, 00:11
4. Данные обновлены31.10.2026, 11:58
5. Данные обновлены29.10.2026, 12:31
6. Опубликована29.10.2026, 00:18

Личная заметка и статус

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