SB20251230162 - Use-after-free in Linux kernel bluetooth
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230162
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2023-54210)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the hci_remove_adv_monitor() function in net/bluetooth/hci_core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0d4d6b083da9b033ddccef72d77f373c819ae3ea
- https://git.kernel.org/stable/c/bf00c2c8f6254f44ac041aa9a311ae9e0caf692b
- https://git.kernel.org/stable/c/de6dfcefd107667ce2dbedf4d9337f5ed557a4a1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.42
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5