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CVE-2026-68465

kernel: mmc: sdhci-esdhc-imx: fix esdhc_change_pinstate() to allow default state restore

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · August 15, 2026

Updated · October 30, 2026

Description

A flaw was found in the Linux kernel's SDHCI eSDHC i.MX driver. The esdhc_change_pinstate() function contains an error in how it checks for high-speed pin states. This prevents devices with a sleep pinctrl state from restoring their default pin configuration, potentially leading to an improper system state.

Statement

This vulnerability is rated Moderate because exploitation requires local access on specific NXP i.MX hardware platforms, confining the blast radius and precluding remote exploitation. The defect arises during power management transitions where the eSDHC host controller interface fails to return to its default pin state after waking on boards lacking high-frequency pin configurations. Enterprise systems running standard x86_64 server environments do not use this specialized hardware driver, restricting the issue primarily to embedded or automotive deployments running on affected silicon.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-841 · Improper Enforcement of Behavioral Workflow