SB2025100874 - Out-of-bounds read in Linux kernel brcm80211 brcmfmac driver
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025100874
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) Out-of-bounds read (CVE-ID: CVE-2022-50551)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the brcmf_fw_alloc_request() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.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/0b12d2aa264bac35bff9b5399bb162262b2b8949
- https://git.kernel.org/stable/c/1db036d13e10809943c2dce553e2fa7fc9c6cd80
- https://git.kernel.org/stable/c/4c8fc44c44b97854623c56363c359f711fc0b887
- https://git.kernel.org/stable/c/579c9b9838e8a73f6e93ddece07972c241514dcc
- https://git.kernel.org/stable/c/5b06a8a25eba07628313aa3c5496522eff97be53
- https://git.kernel.org/stable/c/81d17f6f3331f03c8eafdacea68ab773426c1e3c
- https://git.kernel.org/stable/c/87792567d9ed93fd336d2c3b8d7870f44e141e6d
- https://git.kernel.org/stable/c/9d2f70fa2c7cc6c73a420ff15682454782d3d6f6
- https://git.kernel.org/stable/c/bc45aa1911bf699b9905f12414e3c1879d6b784f
- https://git.kernel.org/stable/c/ffb589963df103caaf062081a32db0b9e1798660
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2