CVE-2023-54042: Linux

High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fix VAS mm use after free The refcount on mm is dropped before the coprocessor is detached.

Affected products

• Linux Linux: from 5.14, before 5.15.121 (fixed in 5.15.121); from 5.16, before 6.1.39 (fixed in 6.1.39); from 6.2, before 6.3.13 (fixed in 6.3.13); from 6.4, before 6.4.4 (fixed in 6.4.4)

Published 2025-12-24. Last modified 2026-08-04.