CVE-2026-43366

7.8 Élevée

Publiée le 08/05/2026 à 17:16 · Modifiée le 19/10/2026 à 22:18 · Modifiée · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: check if target buffer list is still legacy on recycle There's a gap between when the buffer was grabbed and when it potentially gets recycled, where if the list is empty, someone could've upgraded it to a ring provided type. This can happen if the request is forced via io-wq. The legacy recycling is missing checking if the buffer_list still exists, and if it's of the correct type. Add those checks.

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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`

Faiblesses (CWE)

CWE-362

Références

https://git.kernel.org/stable/c/439a6728ec4641ffad1ca796622c19bc525e570f Patch
https://git.kernel.org/stable/c/50ad880db3013c6fee0ef13781762a39e2e7ef83 Patch
https://git.kernel.org/stable/c/97b57f69fee1b61b41acbf37e7720cac9d389fa4 Patch
https://git.kernel.org/stable/c/a7b33671e418fca507feebd1d56e7f4952a4b25c Patch
https://git.kernel.org/stable/c/c2c185be5c85d37215397c8e8781abf0a69bec1f Patch
https://git.kernel.org/stable/c/f3fb54e7a8b4aadcc2836ee463eec8c88709b8aa Patch

Ailleurs

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