CVE-2023-4611

Published: Aug 29, 2023Modified: Jun 17, 2026

6.3

Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

Exploitability: 1.0 / Impact: 5.2

Source: NVD

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 (4)

Products: Linux: Linux Kernel

1 product

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	Before 6.5
Linux Linux Kernel	Version 6.5 rc1
Linux Linux Kernel	Version 6.5 rc2
Linux Linux Kernel	Version 6.5 rc3

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (6)

https://access.redhat.com/security/cve/CVE-2023-4611

Source: secalert@redhat.com

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2227244

Source: secalert@redhat.com

Issue TrackingPatchThird Party Advisory

https://www.spinics.net/lists/stable-commits/msg310136.html

Source: secalert@redhat.com

Mailing ListPatch

https://access.redhat.com/security/cve/CVE-2023-4611

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2227244

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingPatchThird Party Advisory

https://www.spinics.net/lists/stable-commits/msg310136.html

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListPatch

Timeline

No history available yet.