Description
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix potential UAF in aa_replace_profiles The function aa_replace_profiles was accessing udata->size after calling aa_put_loaddata(udata), causing a potential UAF. Fixed this by saving the size to a local variable before dropping the reference.
References8
- git.kernel.org/stable/c/57b1bd4486d56254bb8af1a8f3d4445bbe505290
- git.kernel.org/stable/c/5cba148eae6e8550c2889f5c0f94d72bed864321
- git.kernel.org/stable/c/7b42f95813dc9ceb6bda35afcf914630909a19f9
- git.kernel.org/stable/c/9d37dc6376e336dc4b4f39a7ad0d069aa70e9495
- git.kernel.org/stable/c/9d8e47cbce7536f19c96e37d0685a042010187ee
- git.kernel.org/stable/c/c0f3a3fda617beeec58708720304dd026a1a4dd7
- git.kernel.org/stable/c/c44de0880b7ccc15c70a6352b5e107677d32b061
- git.kernel.org/stable/c/dd5f1202f45a2dbe2c7dd10093f5c6bb2d8ac5bb
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: 7 · as of 8 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.