CVE-2026-64507

CVE CVE-2026-64507EUVD EUVD-2026-48851Published 2026-07-25T08:52:01.000ZLast changed 2026-07-27T04:37:45.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 57631054fae6dcc9c892ae6310b58bbb6f6e5048 <52440e15d9628f8f239373c0f2e5e8f92feea2df; patch: 6.18.39; 57631054fae6dcc9c892ae6310b58bbb6f6e5048 <8a4c8af9ae67eb072d90d1b339f14d27a82bd2a1; 57631054fae6dcc9c892ae6310b58bbb6f6e5048 <cb27f3bf915cc0f20fc0c48da9059304e39ebd35; 57631054fae6dcc9c892ae6310b58bbb6f6e5048 <a3af84b0fa00ead01fcd0e28b5d773ff25990a0d; patch: 6.6.145; patch: 7.2-rc2; patch: 6.12.97; patch: 0; patch: 7.1.4; 5.18; 57631054fae6dcc9c892ae6310b58bbb6f6e5048 <9354248fc1c33a844ca1872761f6668b393e8c37

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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