CVE-2026-46093

7.8 Élevée

Publiée le 27/05/2026 à 16:17 · Modifiée le 18/07/2026 à 18:17 · Modifiée · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Description

In the Linux kernel, the following vulnerability has been resolved: mm/vmalloc: take vmap_purge_lock in shrinker decay_va_pool_node() can be invoked concurrently from two paths: __purge_vmap_area_lazy() when pools are being purged, and the shrinker via vmap_node_shrink_scan(). However, decay_va_pool_node() is not safe to run concurrently, and the shrinker path currently lacks serialization, leading to races and possible leaks. Protect decay_va_pool_node() by taking vmap_purge_lock in the shrinker path to ensure serialization with purge users.

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Produits concernés

Linux
Linux linux kernel

Scores CVSS

Version	Score	Source	Vecteur
3.1	7.8 Élevée	416baaa9-dc9f-4396-8d5f-8c081fb06d67	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`

Références

https://git.kernel.org/stable/c/12f2341b4c235d5593a433abac201c1c6725787f Patch
https://git.kernel.org/stable/c/687ccdf582169cd680aeaf24cc953807c4cd4345 Patch
https://git.kernel.org/stable/c/c15ff206ba78820bf2873d0c668a882e99f4b631
https://git.kernel.org/stable/c/ec05f51f1e65bce95528543eb73fda56fd201d94 Patch

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories