SB20251230176 - Use-after-free in Linux kernel ath ath9k driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230176
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-2022-50881)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ath9k_htc_disconnect_device() function in drivers/net/wireless/ath/ath9k/htc_drv_init.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1f137c634a8c8faba648574f687805641e62f92e
- https://git.kernel.org/stable/c/634a5471a6bd774c0d0fa448dfa6ec593e899ec9
- https://git.kernel.org/stable/c/99ff971b62e5bd5dee65bbe9777375206f5db791
- https://git.kernel.org/stable/c/de15e8bbd9eb26fe94a06d0ec7be82dc490eb729
- https://git.kernel.org/stable/c/f099c5c9e2ba08a379bd354a82e05ef839ae29ac
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.173
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.99
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3