SB20250619165 - Use-after-free in Linux kernel mac80211
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB20250619165
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-2022-49934)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the __ieee80211_scan_completed() function in net/mac80211/scan.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/4abc8c07a065ecf771827bde3c63fbbe4aa0c08b
- https://git.kernel.org/stable/c/5d20c6f932f2758078d0454729129c894fe353e7
- https://git.kernel.org/stable/c/60deb9f10eec5c6a20252ed36238b55d8b614a2c
- https://git.kernel.org/stable/c/6eb181a64fdabf10be9e54de728876667da20255
- https://git.kernel.org/stable/c/78a07732fbb0934d14827d8f09b9aa6a49ee1aa9
- https://git.kernel.org/stable/c/9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d
- https://git.kernel.org/stable/c/c0445feb80a4d0854898118fa01073701f8d356b
- https://git.kernel.org/stable/c/e0ff39448cea654843744c72c6780293c5082cb1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.295