SB2024070442 - Memory leak in Linux kernel mt76 mt7615 driver
Published: July 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024070442
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-2021-47033)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the mt7615_txp_skb_unmap_fw() function in drivers/net/wireless/mediatek/mt76/mt7615/mac.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/75bc5f779a7664d1fc19cb915039439c6e58bb94
- https://git.kernel.org/stable/c/a025277a80add18c33d01042525a74fe5b875f25
- https://git.kernel.org/stable/c/821ae236ccea989a1fcc6abfc4d5b74ad4ba39d2
- https://git.kernel.org/stable/c/ebee7885bb12a8fe2c2f9bac87dbd87a05b645f9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.37
- 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