i2c: imx-lpi2c: mark I2C adapter when hardware is powered down

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Summary

CVECVE-2026-64278
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-25 10:17:08 UTC
Updated2026-07-30 15:00:27 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: i2c: imx-lpi2c: mark I2C adapter when hardware is powered down On some i.MX platforms, certain I2C client drivers keep a periodic workqueue which continues to trigger I2C transfers. During system suspend/resume, there exists a time window between: - suspend_noirq and the system entering suspend - the system starting to resume and resume_noirq In this window, the I2C controller resources such as clock and pinctrl may already be disabled or not yet restored. If a workqueue triggers an I2C transfer in this period, the driver attempts to access I2C registers while the hardware resources are unavailable, which may lead to system hang. Mark the I2C adapter as suspended during noirq suspend and block new transfers until resume, ensuring that I2C transfers are only issued when hardware resources are available.

Risk And Classification

EPSS: 0.001980000 probability, percentile 0.098290000 (date 2026-08-02)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 1ee867e465c1b0216ec02d4c0d334c4e89919cec b2523f26979e0b5bd1422772176b2233fcd1f6d0 git Not specified
CNA Linux Linux affected 1ee867e465c1b0216ec02d4c0d334c4e89919cec 5800647d19d3f1f747fda4dc67e55d6afa6ee119 git Not specified
CNA Linux Linux affected 1ee867e465c1b0216ec02d4c0d334c4e89919cec 218cfe364b55b2768221629bd4a69ad190b7fbbc git Not specified
CNA Linux Linux affected 6.14 Not specified
CNA Linux Linux unaffected 6.14 semver Not specified
CNA Linux Linux unaffected 6.18.39 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.4 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/218cfe364b55b2768221629bd4a69ad190b7fbbc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5800647d19d3f1f747fda4dc67e55d6afa6ee119 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b2523f26979e0b5bd1422772176b2233fcd1f6d0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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