SB2025100878 - NULL pointer dereference in Linux kernel mediatek mt7601u driver
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025100878
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-2023-53679)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mt7601u_rx_next_seg_len() function in drivers/net/wireless/mediatek/mt7601u/dma.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/1a1f43059afae5cc9409e0c3bc63bfc09bc8facb
- https://git.kernel.org/stable/c/47dc1f425af57b71111d7b01ebd24e04e8d967ef
- https://git.kernel.org/stable/c/61d0163e2be7a439cf6f82e9ad7de563ecf41e7a
- https://git.kernel.org/stable/c/67e4519afba215199b6dfa39ce5d7ea673ee4138
- https://git.kernel.org/stable/c/803f3176c5df3b5582c27ea690f204abb60b19b9
- https://git.kernel.org/stable/c/d0db59e2f718d1e2f1d2a2d8092168fdd2f3add0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3