SB2025102353 - NULL pointer dereference in Linux kernel mt76 mt7921 driver
Published: October 23, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025102353
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-2023-53710)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the mt7921_acpi_read() function in drivers/net/wireless/mediatek/mt76/mt7921/acpi_sar.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/2a9a5f88e0da71c8e4f30aacbda45b1a1af5469d
- https://git.kernel.org/stable/c/59c2b0aec7a5aa350aa3edfb4363b19348c2269f
- https://git.kernel.org/stable/c/888d89034f9eaeab9b5b75f13dbe35376c7dd471
- 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