SB2025091891 - Improper Initialization in Linux kernel brcm80211 brcmfmac driver
Published: September 18, 2025 Updated: September 22, 2025
Security Bulletin ID
SB2025091891
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) Improper Initialization (CVE-ID: CVE-2022-50358)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper initialization within the brcmf_pcie_init_ringbuffers() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.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/10c4b63d09a5b0ebf1b61af1dae7f25555cf58b6
- https://git.kernel.org/stable/c/200347eb3b2608cc8b54c13dd1d5e03809ba2eb2
- https://git.kernel.org/stable/c/2aca4f3734bd717e04943ddf340d49ab62299a00
- https://git.kernel.org/stable/c/2e8bb402b060a6c22160de3d72cee057698177c8
- https://git.kernel.org/stable/c/3cc9299036bdb647408e11e41de3eb1ff6d428cd
- https://git.kernel.org/stable/c/87f126b25fa8562196f0f4c0aa46a446026199bf
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.16