SB20250226235 - Use-after-free in Linux kernel bluetooth driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226235
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-2022-49470)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the btmtksdio_recv_event() function in drivers/bluetooth/btmtksdio.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/01c6a899fa6be4f4cbf60c4f44f0f6691155415f
- https://git.kernel.org/stable/c/02ba31e09a26e8cd4582ac8e6163d80284997727
- https://git.kernel.org/stable/c/0fab6361c4ba17d1b43a991bef4238a3c1754d35
- https://git.kernel.org/stable/c/b3cec8a42fcd11d05313c724f27e01b1db77522c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.54