CVE-2026-90392

7.8 Élevée

Publiée le 17/09/2026 à 19:17 · Modifiée le 19/10/2026 à 11:19 · Reçue · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential UAF when reading bpf link info In bpf_link_show_fdinfo and bpf_link_get_info_by_fd, link->prog is accessed without holding any locks. If the prog is concurrently replaced via bpf_link_update, the old prog can be freed, leading to a potential UAF issue. Fix this by accessing link->prog under RCU protection to safely fetch the pointer and guarantee its lifetime while reading its fields.

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Produits concernés

Linux

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/79347e42cfbc9e78872922e8f08a70609c9af82f
https://git.kernel.org/stable/c/85cf991c881e7198be32be05a9daa2625390c8b3
https://git.kernel.org/stable/c/863f3ddd0b8ac65abfb50d3be0869268ac0e277b
https://git.kernel.org/stable/c/a5c936ac904767fc1d943d40b0308bcb2ae2509b
https://git.kernel.org/stable/c/d7d7208e2603b45724b684f4df73904fb347741e

Ailleurs

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