CVE-2026-43330

7.8 Élevée

Publiée le 08/05/2026 à 16:16 · Modifiée le 17/06/2026 à 12:49 · Analysée par le NVD · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: caam - fix overflow on long hmac keys When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The copying is performed using kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy.

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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-787

Références

https://git.kernel.org/stable/c/31022cfde5235c45fa765f0aabeff5f0652852f2 Patch
https://git.kernel.org/stable/c/80688afb9c35b3934ce2d6be9973758915e2e0ef Patch
https://git.kernel.org/stable/c/aa545df011338df13f0833fc1fabcb15c0521959 Patch
https://git.kernel.org/stable/c/c2fb4984fe09fc176fe4c12d5e3edf626df6511d Patch
https://git.kernel.org/stable/c/cebc5ebd958346195b77f42d0cd5141b4e448fae Patch

Ailleurs

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