SB2024070441 - Memory leak in Linux kernel mt76 mt7915 driver
Published: July 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024070441
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-2021-47032)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the mt7915_txp_skb_unmap() function in drivers/net/wireless/mediatek/mt76/mt7915/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/4e7914ce23306b28d377ec395e00e5fde0e6f96e
- https://git.kernel.org/stable/c/4a9dcd6efb2a268fc5707dcfb3b0c412975c4462
- https://git.kernel.org/stable/c/e2cdc9cb33c5963efe1a7c022753386f9463d1b7
- https://git.kernel.org/stable/c/7dcf3c04f0aca746517a77433b33d40868ca4749
- 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