CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
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.
Засегнати продукти
- Linux Linux: fb56fdf8b9a2f7397f8a83dce50189f3f0cf71af преди c19ff4351214f059349788e13e70e74325831ff6; fb56fdf8b9a2f7397f8a83dce50189f3f0cf71af преди 2b66496d794e98f7aeec7688573051f22ec40bac; fb56fdf8b9a2f7397f8a83dce50189f3f0cf71af преди 98733f3f0becb1ae0701d021c1748e974e5fa55c
- Linux Linux: 6.13; преди 6.13; 6.18.36 до 6.18.*; 7.0.13 до 7.0.*; от 7.1 нататък
Red Hat: още 5 продукта, добавени от Red Hat
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9
Вид слабост
История
- 25 юни 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-53153
- https://nvd.nist.gov/vuln/detail/CVE-2026-53153
- https://git.kernel.org/stable/c/c19ff4351214f059349788e13e70e74325831ff6
- https://git.kernel.org/stable/c/2b66496d794e98f7aeec7688573051f22ec40bac
- https://git.kernel.org/stable/c/98733f3f0becb1ae0701d021c1748e974e5fa55c
- https://access.redhat.com/security/cve/CVE-2026-53153
- https://bugzilla.redhat.com/show_bug.cgi?id=2492790
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53153.json
- https://access.redhat.com/errata/RHSA-2026:61887