SB2025120890 - NULL pointer dereference in Linux kernel brcm80211 brcmfmac driver
Published: December 8, 2025
Security Bulletin ID
SB2025120890
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) NULL pointer dereference (CVE-ID: CVE-2025-40321)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h. 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/3776c685ebe5f43e9060af06872661de55e80b9a
- https://git.kernel.org/stable/c/55f60a72a178909ece4e32987e4c642ba57e1cf4
- https://git.kernel.org/stable/c/64e3175d1c8a3bea02032e7c9d1befd5f43786fa
- https://git.kernel.org/stable/c/a6eed58249e7d60f856900e682992300f770f64b
- https://git.kernel.org/stable/c/c2b0f8d3e7358c33d90f0e62765d474f25f26a45
- https://git.kernel.org/stable/c/c863b9c7b4e9af0b7931cb791ec91971a50f1a25
- https://git.kernel.org/stable/c/dbc7357b6aae686d9404e1dd7e2e6cf92c3a1b5a
- https://git.kernel.org/stable/c/e1fc9afcce9139791260f962541282d47fbb508d