SB20251230226 - NULL pointer dereference in Linux kernel rxrpc
Published: December 30, 2025 Updated: December 30, 2025
Security Bulletin ID
SB20251230226
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2023-54195)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the rxrpc_do_sendmsg() function in net/rxrpc/sendmsg.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/72f4a9f3f447948cf86dffe1c4a4c8a429ab9666
- https://git.kernel.org/stable/c/92128a7170a220b5126d09a1c1954a3a8d46cef3
- https://git.kernel.org/stable/c/db099c625b13a74d462521a46d98a8ce5b53af5d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4