Description
A use-after-free flaw was found in mm/mempolicy.c in the memory management subsystem in the Linux Kernel. This issue is caused by a race between mbind() and VMA-locked page fault, and may allow a local attacker to crash the system or lead to a kernel information leak.
Affected products
linux: linux kernel
References6
- bugzilla.redhat.com/show_bug.cgi?id=2227244 Issue TrackingPatchThird Party Advisory
- www.spinics.net/lists/stable-commits/msg310136.html Mailing ListPatch
- bugzilla.redhat.com/show_bug.cgi?id=2227244 Issue TrackingPatchThird Party Advisory
- www.spinics.net/lists/stable-commits/msg310136.html Mailing ListPatch
- access.redhat.com/security/cve/CVE-2023-4611 Third Party Advisory
- access.redhat.com/security/cve/CVE-2023-4611 Third Party Advisory
Metrics
- CVSS 3.1
-
6.3
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H - EPSS — exploit probability
- 0% percentile: 19 · as of 5 November 2026
- CWE
- CWE-416
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.