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5.5
MEDIUM CVSS 3.1
CVE-2026-64278
i2c: imx-lpi2c: mark I2C adapter when hardware is powered down
Overview
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.

Details
INFO

Published Date :

July 25, 2026, 10:17 a.m.

Last Modified :

Aug. 17, 2026, 5:17 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-64278 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
Ensure I2C transfers are only issued when hardware resources are available.
  • Mark the I2C adapter as suspended during suspend.
  • Block new transfers until resume completes.
  • Ensure hardware resources are available before transfers.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-64278.

URL Resource
https://git.kernel.org/stable/c/218cfe364b55b2768221629bd4a69ad190b7fbbc Patch
https://git.kernel.org/stable/c/5800647d19d3f1f747fda4dc67e55d6afa6ee119 Patch
https://git.kernel.org/stable/c/b2523f26979e0b5bd1422772176b2233fcd1f6d0 Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-64278 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-64278 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-64278 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-64278 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 17, 2026

    Action Type Old Value New Value
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '1ee867e465c1b0216ec02d4c0d334c4e89919cec', 'lessThan': 'b2523f26979e0b5bd1422772176b2233fcd1f6d0', 'versionType': 'git'}, {'status': 'affected', 'version': '1ee867e465c1b0216ec02d4c0d334c4e89919cec', 'lessThan': '5800647d19d3f1f747fda4dc67e55d6afa6ee119', 'versionType': 'git'}, {'status': 'affected', 'version': '1ee867e465c1b0216ec02d4c0d334c4e89919cec', 'lessThan': '218cfe364b55b2768221629bd4a69ad190b7fbbc', 'versionType': 'git'}], 'programFiles': ['drivers/i2c/busses/i2c-imx-lpi2c.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/i2c/busses/i2c-imx-lpi2c.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '1ee867e465c1b0216ec02d4c0d334c4e89919cec', 'lessThan': 'b2523f26979e0b5bd1422772176b2233fcd1f6d0', 'versionType': 'git'}, {'status': 'affected', 'version': '1ee867e465c1b0216ec02d4c0d334c4e89919cec', 'lessThan': '5800647d19d3f1f747fda4dc67e55d6afa6ee119', 'versionType': 'git'}, {'status': 'affected', 'version': '1ee867e465c1b0216ec02d4c0d334c4e89919cec', 'lessThan': '218cfe364b55b2768221629bd4a69ad190b7fbbc', 'versionType': 'git'}], 'programFiles': ['drivers/i2c/busses/i2c-imx-lpi2c.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/i2c/busses/i2c-imx-lpi2c.c'], 'defaultStatus': 'affected'}]
  • Initial Analysis by [email protected]

    Aug. 13, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.1.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.14 up to (excluding) 6.18.39
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/218cfe364b55b2768221629bd4a69ad190b7fbbc Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/5800647d19d3f1f747fda4dc67e55d6afa6ee119 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/b2523f26979e0b5bd1422772176b2233fcd1f6d0 Types: Patch
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 25, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '1ee867e465c1b0216ec02d4c0d334c4e89919cec', 'lessThan': 'b2523f26979e0b5bd1422772176b2233fcd1f6d0', 'versionType': 'git'}, {'status': 'affected', 'version': '1ee867e465c1b0216ec02d4c0d334c4e89919cec', 'lessThan': '5800647d19d3f1f747fda4dc67e55d6afa6ee119', 'versionType': 'git'}, {'status': 'affected', 'version': '1ee867e465c1b0216ec02d4c0d334c4e89919cec', 'lessThan': '218cfe364b55b2768221629bd4a69ad190b7fbbc', 'versionType': 'git'}], 'programFiles': ['drivers/i2c/busses/i2c-imx-lpi2c.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.39', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.4', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/i2c/busses/i2c-imx-lpi2c.c'], 'defaultStatus': 'affected'}]
    Added 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.
    Added Reference https://git.kernel.org/stable/c/218cfe364b55b2768221629bd4a69ad190b7fbbc
    Added Reference https://git.kernel.org/stable/c/5800647d19d3f1f747fda4dc67e55d6afa6ee119
    Added Reference https://git.kernel.org/stable/c/b2523f26979e0b5bd1422772176b2233fcd1f6d0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
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Scope
Confidentiality Impact
Integrity Impact
Availability Impact