SB20260918156 - Memory leak in Linux kernel platform broadcom driver

Description

This security bulletin contains information about 1 vulnerability.

1) Memory leak (CVE-ID: CVE-2026-93071)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a local privileged user to cause a denial of service.

The vulnerability exists due to improper resource cleanup in the bcm2835-unicam driver when handling driver initialization failures or device removal. A local privileged user can cause the driver to enter an error or removal path to leak allocated asynchronous subdevice connection resources and cause a denial of service.

The leak was detected after module removal.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/253c9659e25131b0169f718e7d094ac1aa0d9279
• https://git.kernel.org/stable/c/2c29cd408ef86e695acb2a5d4e00fa2f5695368d
• https://git.kernel.org/stable/c/5479372db364c80bb6bd59f640f5c31de3984bab
• https://git.kernel.org/stable/c/de9be39cefda1ecd762e6a913665c01f7bb18100