CVE-2026-46182

5.5 Moyenne

Publiée le 28/05/2026 à 12:16 · Modifiée le 17/06/2026 à 12:53 · Analysée par le NVD · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Description

In the Linux kernel, the following vulnerability has been resolved: pseries/papr-hvpipe: Prevent kernel stack memory leak to userspace The hdr variable is allocated on the stack and only hdr.version and hdr.flags are initialized explicitly. Because the struct papr_hvpipe_hdr contains reserved padding bytes (reserved[3] and reserved2[40]), these could leak the uninitialized bytes to userspace after copy_to_user(). This patch fixes that by initializing the whole struct to 0.

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Produits concernés

Linux
Linux linux kernel

Scores CVSS

Version	Score	Source	Vecteur
3.1	5.5 Moyenne	nvd@nist.gov (NVD)	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`

Faiblesses (CWE)

CWE-401

Références

https://git.kernel.org/stable/c/0479b6e9f999cc1cbad7d9f09f574fc387e605d5 Patch
https://git.kernel.org/stable/c/cefeed44296261173a806bef988b26bc565da4be Patch
https://git.kernel.org/stable/c/f88f8e4485b437e0a2f96a7ff1f88aa22d925659 Patch

Ailleurs

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