Riskcovery

CVE-2026-64278

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

State
Published
Severity
Not scored
Published
Jul 25, 2026
Updated
Aug 17, 2026
Reserved
Jul 19, 2026

Read the record on cve.org

Description

In 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 1ee867e465c1b0216ec02d4c0d334c4e89919cec to before b2523f26979e0b5bd1422772176b2233fcd1f6d0Affected
  • 1ee867e465c1b0216ec02d4c0d334c4e89919cec to before 5800647d19d3f1f747fda4dc67e55d6afa6ee119Affected
  • 1ee867e465c1b0216ec02d4c0d334c4e89919cec to before 218cfe364b55b2768221629bd4a69ad190b7fbbcAffected
LinuxLinux
  • 6.14Affected
  • before 6.14Not affected
  • 6.18.39 through 6.18.*Not affected
  • 7.1.4 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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