SB20250226532 - Improper locking in Linux kernel rtl8723bs core driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226532
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) Improper locking (CVE-ID: CVE-2022-49309)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the rtw_surveydone_event_callback() and rtw_scan_timeout_handler() functions in drivers/staging/rtl8723bs/core/rtw_mlme.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2c41f5c341853f84b7bc2f32605d4e2782e8c279
- https://git.kernel.org/stable/c/cc7ad0d77b51c872d629bcd98aea463a3c4109e7
- https://git.kernel.org/stable/c/ce129d3efd181da5fd56f4360cc8827122afa67e
- https://git.kernel.org/stable/c/f89f6c3ebf69623b8ea48200bd690e9e210335a1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.47