SB20240531390 - Memory leak in Linux kernel mt76 mt7915 driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531390
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) Memory leak (CVE-ID: CVE-2021-47021)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the mt7915_unregister_device() function in drivers/net/wireless/mediatek/mt76/mt7915/init.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/81483309ce861a9fa7835322787f68a443fea364
- https://git.kernel.org/stable/c/d754c80ae82a662e692a82faad71b8c218cb7f52
- https://git.kernel.org/stable/c/e9d32af478cfc3744a45245c0b126738af4b3ac4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13