SB2026072039 - Improper resource shutdown or release in Linux kernel i2c busses driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-64171)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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 shutdown or release in the tegra i2c transfer function in drivers/i2c/busses/i2c-tegra.c when handling an i2c transfer after a runtime power management reference is acquired and mutex locking fails. A local user can trigger the error path to cause a denial of service.

The issue prevents the device from entering runtime suspend.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/57cf4e8d6a57dc2ef5810f4852a23ba4c71b74bb
• https://git.kernel.org/stable/c/8f7ed203b39004c02479a9156089d87d1ac2c1d8