SB20251226204 - NULL pointer dereference in Linux kernel mediatek mt76 driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226204
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) NULL pointer dereference (CVE-ID: CVE-2022-50735)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mt76u_status_worker() function in drivers/net/wireless/mediatek/mt76/usb.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/58fdd84a89b121b761dbfb8a196356e007376ca4
- https://git.kernel.org/stable/c/69346de0eb956fb92949b9473de4647d9c34a54f
- https://git.kernel.org/stable/c/bd5dac7ced5a7c9faa4dc468ac9560c3256df845
- https://git.kernel.org/stable/c/f5ac749a0b21beee55d87d0b05de36976b22dff9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2