SB20260816262 - Improper control of a resource through its lifetime in Linux kernel i2c busses driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-74462)

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

CVSSv4: 6.8 [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]

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

The vulnerability exists due to improper resource state handling in the i.MX I2C bus driver when processing I2C transfers during the noirq suspend and resume window. A local user can trigger an I2C transfer while the controller resources are unavailable to cause a denial of service.

The issue occurs on affected i.MX platforms when periodic workqueues or timer-driven activity continue issuing transfers as hardware resources such as clocks or pin control are disabled or not yet restored.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/00d86dd5c2034e0e139e4806137b3b43e07ddd83
• https://git.kernel.org/stable/c/7a5db225ab5a6b095f6c37197b3b114921d85541
• https://git.kernel.org/stable/c/ec8e15e3e5c7e8180b13399f5a5aff8415bf16c5