SB20251230232 - NULL pointer dereference in Linux kernel bluetooth
Published: December 30, 2025 Updated: December 30, 2025
Security Bulletin ID
SB20251230232
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-2023-54164)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the iso_conn_add(), iso_connect_bis(), iso_connect_cis(), iso_sock_sendmsg() and iso_sock_recvmsg() functions in net/bluetooth/iso.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.