High 7.8Published Dec 24, 2025

CVE-2023-54042powerpc/64s: Fix VAS mm use after free

Updated under an hour ago (Oct 28, 2026, 6:50 AM ET)

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Exploited in the last 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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 before f7d92313002b2d543500cc417d8079aaed1fb0a8; 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 builds before 4e82f92c349ea603736ade1e814861c0182a55ad; from 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 before db8657fdd53c5e3069149d7f957cb60e63027bb2; from 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 before 421cd1544480f2458042fe7f4913a2069c4d7251; from 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 before b4bda59b47879cce38a6ec5a01cd3cac702b5331	CNA record

References

References

https://git.kernel.org/stable/c/f7d92313002b2d543500cc417d8079aaed1fb0a8
https://git.kernel.org/stable/c/4e82f92c349ea603736ade1e814861c0182a55ad
https://git.kernel.org/stable/c/db8657fdd53c5e3069149d7f957cb60e63027bb2
https://git.kernel.org/stable/c/421cd1544480f2458042fe7f4913a2069c4d7251
https://git.kernel.org/stable/c/b4bda59b47879cce38a6ec5a01cd3cac702b5331

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.