x86/bugs: Enable IBPB flush on BPF JIT allocation (Linux Linux)

CVE-2026-64507
Non disponible

En bref

Source
NVD
EPSS
EPSS 0.23 % · centile 14 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Received

Description

In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Enable IBPB flush on BPF JIT allocation Enable hardening against JIT spraying when Spectre-v2 mitigations are in use. Specifically, issue an IBPB flush on BPF JIT memory reuse. Skip enabling the IBPB flush if the BPF dispatcher is already using a retpoline sequence. This hardening applies only when BPF-JIT is in use. Guard the enabling under CONFIG_BPF_JIT so that bugs.c still builds with CONFIG_BPF_JIT=n.

Références

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 57631054fae6dcc9c892ae6310b58bbb6f6e5048 < 25dbcd31781e2bc3cd63d873af1fcd06f863a126 ; affected 57631054fae6dcc9c892ae6310b58bbb6f6e5048 < cb27f3bf915cc0f20fc0c48da9059304e39ebd35 ; affected 57631054fae6dcc9c892ae6310b58bbb6f6e5048 < 9354248fc1c33a844ca1872761f6668b393e8c37 ; affected 57631054fae6dcc9c892ae6310b58bbb6f6e5048 < 8a4c8af9ae67eb072d90d1b339f14d27a82bd2a1 ; affected 57631054fae6dcc9c892ae6310b58bbb6f6e5048 < 52440e15d9628f8f239373c0f2e5e8f92feea2df ; affected 57631054fae6dcc9c892ae6310b58bbb6f6e5048 < a3af84b0fa00ead01fcd0e28b5d773ff25990a0d
Linux · Linuxaffected 5.18 ; unaffected 0 < 5.18 ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.145 ≤ 6.6.* ; unaffected 6.12.97 ≤ 6.12.* ; unaffected 6.18.39 ≤ 6.18.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD