Description
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.
References5
- git.kernel.org/stable/c/421cd1544480f2458042fe7f4913a2069c4d7251
- git.kernel.org/stable/c/4e82f92c349ea603736ade1e814861c0182a55ad
- git.kernel.org/stable/c/b4bda59b47879cce38a6ec5a01cd3cac702b5331
- git.kernel.org/stable/c/db8657fdd53c5e3069149d7f957cb60e63027bb2
- git.kernel.org/stable/c/f7d92313002b2d543500cc417d8079aaed1fb0a8
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 11 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.