SB20251230168 - Use-after-free in Linux kernel bluetooth driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230168
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-2023-54197)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the btsdio_remove() function in drivers/bluetooth/btsdio.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0837d10f6c37a47a0c73bccf1e39513613a2fcc2
- https://git.kernel.org/stable/c/3b4ed52009723f7dfca7a8ca95163bfb441bfb76
- https://git.kernel.org/stable/c/70a104588e3131415e559c06deb834ce259a285a
- https://git.kernel.org/stable/c/8f83fa62614c282dd5d1211a0dd99c6a0a515b81
- https://git.kernel.org/stable/c/952030c914b5f2288609efe868537afcff7a3f51
- https://git.kernel.org/stable/c/a789192f366147a0fbb395650079906d1d04e0b9
- https://git.kernel.org/stable/c/d8d7ce037d9a8f1f0714ece268c4c2c50845bbc3
- https://git.kernel.org/stable/c/db2bf510bd5d57f064d9e1db395ed86a08320c54
- https://git.kernel.org/stable/c/de0ffb5145c9f418ad76f00e58d4b91c680410b2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.243