CVE-2026-53340: i2c: imx: fix clock and pinctrl state inconsistency in runtime PM
In the Linux kernel, the following vulnerability has been resolved:
i2c: imx: fix clock and pinctrl state inconsistency in runtime PM
In i2cimxruntimesuspend(), the clock is disabled before switching the pinctrl state to sleep. If pinctrlpmselectsleepstate() fails, the runtime suspend is aborted but the clock remains disabled, causing a system crash when the hardware is subsequently accessed.
Fix this by switching the pinctrl state before disabling the clock so that a pinctrl failure leaves the clock enabled and the hardware accessible.
In i2cimxruntimeresume(), restore the pinctrl state back to sleep if clkenable() fails to keep the consistent.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-53340?
CVE-2026-53340 has a risk level rated at 40.
How do I fix CVE-2026-53340?
To fix CVE-2026-53340, update your Linux kernel to the latest patched version.
What systems are affected by CVE-2026-53340?
CVE-2026-53340 affects the Linux kernel implementations that utilize the i2c_imx driver.
What are the implications of CVE-2026-53340?
The vulnerability may lead to inconsistent clock and pinctrl states, impacting device stability during runtime power management.
When was CVE-2026-53340 published?
CVE-2026-53340 was published on July 1, 2026.