SB2025121067 - Use-after-free in Linux kernel bluetooth
Published: December 10, 2025 Updated: December 12, 2025
Security Bulletin ID
SB2025121067
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-2023-53828)
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_add_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/81d8e9f59df63b8358751c1ffed9f1cf5c796909
- https://git.kernel.org/stable/c/8d66f7ced51cb924bc90278d6a0a26a52877271a
- https://git.kernel.org/stable/c/a2bcd2b63271a93a695fabbfbf459c603d956d48
- https://git.kernel.org/stable/c/aafda69d4807f5edf3558c9534be9b911774e63a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.16