CVE-2023-54161
kernel: Linux kernel: Denial of Service via use-after-free in unix_stream_sendpage()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 24, 2025
Updated · June 30, 2026
Description
A flaw was found in the Linux kernel. A local user could exploit a race condition in the unix_stream_sendpage() function, which handles sending data over Unix domain sockets. This race condition occurs during the garbage collection of socket file descriptors, leading to a use-after-free vulnerability. Successful exploitation of this flaw can result in a system crash, causing a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference