SB2025100482 - Out-of-bounds read in Linux kernel brcm80211 brcmfmac driver
Published: October 4, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100482
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-2023-53582)
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_c_preinit_dcmds() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.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/0ca2efea4f11c6255061e852ac188264c469c197
- https://git.kernel.org/stable/c/3b173b4ad9c001a555f44adc7836d6fe3afbe9ec
- https://git.kernel.org/stable/c/423a1297ea72bbddf64dbb0957f2879c0f2aa5d0
- https://git.kernel.org/stable/c/660145d708be52f946a82e5b633c020f58f996de
- https://git.kernel.org/stable/c/a0f0ce1c8ab9fe90618dc394e3d1568b5a9ac154
- https://git.kernel.org/stable/c/c02f733024d70105f22de8dd0a1252a0350cd516
- https://git.kernel.org/stable/c/ecb980dc79709c02f579a9c03cb92ccec189ab38
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.16