Vulnerability in Linux

CVE-2023-54042

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (2.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-54042: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

  • Linux — versions 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85, 5.14, 0

References

Frequently asked questions

What is CVE-2023-54042?
CVE-2023-54042 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2025-12-24.
How severe is CVE-2023-54042?
High severity. CVSS v3 base score is 7.8 out of 10.