CVE-2026-80949
kernel: wifi: brcmfmac: Fix memory leak in brcmf_sdio_read_control()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 11, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel's brcmfmac Wi-Fi driver. The memory allocated for a buffer is not properly released in certain error handling paths within the brcmf_sdio_read_control() function. This improper memory management can lead to a memory leak, potentially causing system instability or a denial of service (DoS) due to resource exhaustion.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime