SB2025102311 - Memory leak in Linux kernel brcm80211 brcmfmac driver
Published: October 23, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025102311
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-2023-53715)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the brcmf_map_fw_linkdown_reason() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.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/1687845eb8f37360a9ee849a3587ab659b090773
- https://git.kernel.org/stable/c/2bc34facb90ceeff6f8c17d2006575a6d07c3825
- https://git.kernel.org/stable/c/2fa3a5226b05e0a797c68b9609dcebe0cd236b27
- https://git.kernel.org/stable/c/4e8dc0e5c7636efaadbd7e488acd34b4291c0431
- https://git.kernel.org/stable/c/56c7e9c39bd54fd753c0c4b1ed10278cbd3a5f02
- https://git.kernel.org/stable/c/89b89e52153fda2733562776c7c9d9d3ebf8dd6d
- https://git.kernel.org/stable/c/e242c66f7ecfe8f5b6eb308f4ea464fd8589c866
- https://git.kernel.org/stable/c/f8a6c53ff1d91acd5a20eb627edbffd816eb9a4e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.30