Copyright © 2012 Red Hat, Inc. All rights reserved. Low 2026-07-01T00:00:00 kernel: i2c: imx: fix clock and pinctrl state inconsistency in runtime PM 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE-367

In the Linux kernel, the following vulnerability has been resolved: i2c: imx: fix clock and pinctrl state inconsistency in runtime PM In i2c_imx_runtime_suspend(), the clock is disabled before switching the pinctrl state to sleep. If pinctrl_pm_select_sleep_state() 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 i2c_imx_runtime_resume(), restore the pinctrl state back to sleep if clk_enable() fails to keep the consistent.

A flaw was found in the Linux kernel's i2c: imx driver. During runtime power management, an inconsistency between the clock and pinctrl states can occur. If the pinctrl state fails to switch to sleep mode after the clock is disabled, the clock remains off. This can lead to a system crash when the hardware attempts to access the disabled clock, resulting in a Denial of Service (DoS).

Red Hat Enterprise Linux 10 Fix deferred kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-53340 https://nvd.nist.gov/vuln/detail/CVE-2026-53340 https://lore.kernel.org/linux-cve-announce/2026070144-CVE-2026-53340-a78c@gregkh/T