SB20250226525 - Improper locking in Linux kernel rtl8723bs core driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226525
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-2022-49311)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the rtw_joinbss_event_prehandle() and _rtw_join_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/041879b12ddb0c6c83ed9c0bdd10dc82a056f2fc
- https://git.kernel.org/stable/c/1f6c99b94ca3caad346876b3e22e3ca3d25bc8ee
- https://git.kernel.org/stable/c/ae60744d5fad840b9d056d35b4b652d95e755846
- https://git.kernel.org/stable/c/eca9748d9267a38d532464e3305a38629e9c35a9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4