SB20260425148 - Race condition in Linux kernel i2c busses driver

Description

This security bulletin contains information about 1 vulnerability.

1) Race condition (CVE-ID: CVE-2026-31572)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

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

The vulnerability exists due to a race condition leading to a NULL pointer dereference in the amdisp i2c device probe path when resuming the device during probe initialization. A local user can trigger the affected probe and resume sequence to cause a denial of service.

The issue occurs because runtime resume can be invoked before probe completion while the ISP power state is being managed.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/83bcea9da91965484df64a6492b89e65d41ab31c
• https://git.kernel.org/stable/c/e2f1ada8e089dd5a331bcd8b88125ae2af8d188f
• https://git.kernel.org/stable/c/e81f0341754c309e33babea2821eda8f98f0b44c