Vulnerability-Lookup

CVE-2026-64278 (GCVE-0-2026-64278)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:49 – Updated: 2026-07-25 08:49

Title

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

Summary

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.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/b2523f26979e0b5bd…
https://git.kernel.org/stable/c/5800647d19d3f1f74…
https://git.kernel.org/stable/c/218cfe364b55b2768…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1ee867e465c1b0216ec02d4c0d334c4e89919cec , < b2523f26979e0b5bd1422772176b2233fcd1f6d0 (git) Affected: 1ee867e465c1b0216ec02d4c0d334c4e89919cec , < 5800647d19d3f1f747fda4dc67e55d6afa6ee119 (git) Affected: 1ee867e465c1b0216ec02d4c0d334c4e89919cec , < 218cfe364b55b2768221629bd4a69ad190b7fbbc (git)
Linux	Linux	Affected: 6.14 Unaffected: 0 , < 6.14 (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix)

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JSON

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{
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      "affected": [
        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/i2c/busses/i2c-imx-lpi2c.c"
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            {
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              "status": "affected",
              "version": "1ee867e465c1b0216ec02d4c0d334c4e89919cec",
              "versionType": "git"
            },
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          "versions": [
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              "version": "0",
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            {
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                }
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              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: imx-lpi2c: mark I2C adapter when hardware is powered down\n\nOn some i.MX platforms, certain I2C client drivers keep a periodic\nworkqueue which continues to trigger I2C transfers.\n\nDuring system suspend/resume, there exists a time window between:\n  - suspend_noirq and the system entering suspend\n  - the system starting to resume and resume_noirq\n\nIn this window, the I2C controller resources such as clock and pinctrl\nmay already be disabled or not yet restored.\n\nIf a workqueue triggers an I2C transfer in this period, the driver\nattempts to access I2C registers while the hardware resources are\nunavailable, which may lead to system hang.\n\nMark the I2C adapter as suspended during noirq suspend and block new\ntransfers until resume, ensuring that I2C transfers are only issued\nwhen hardware resources are available."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-25T08:49:22.535Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/5800647d19d3f1f747fda4dc67e55d6afa6ee119"
        },
        {
          "url": "https://git.kernel.org/stable/c/218cfe364b55b2768221629bd4a69ad190b7fbbc"
        }
      ],
      "title": "i2c: imx-lpi2c: mark I2C adapter when hardware is powered down",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64278",
    "datePublished": "2026-07-25T08:49:22.535Z",
    "dateReserved": "2026-07-19T15:36:31.776Z",
    "dateUpdated": "2026-07-25T08:49:22.535Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-07-26",
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    "suse_vex": {
      "aggregate_severity": "not set",
      "current_release_date": "2026-07-25T16:46:44Z",
      "cve": "CVE-2026-64278",
      "id": "CVE-2026-64278",
      "initial_release_date": "2026-07-25T16:46:44Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64278",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64278.json",
      "version": "2"
    }
  }
}

GHSA-MXWH-8XG9-M967

Vulnerability from github – Published: 2026-07-25 12:31 – Updated: 2026-07-25 12:31

Details

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.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-64278"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-25T10:17:08Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: imx-lpi2c: mark I2C adapter when hardware is powered down\n\nOn some i.MX platforms, certain I2C client drivers keep a periodic\nworkqueue which continues to trigger I2C transfers.\n\nDuring system suspend/resume, there exists a time window between:\n  - suspend_noirq and the system entering suspend\n  - the system starting to resume and resume_noirq\n\nIn this window, the I2C controller resources such as clock and pinctrl\nmay already be disabled or not yet restored.\n\nIf a workqueue triggers an I2C transfer in this period, the driver\nattempts to access I2C registers while the hardware resources are\nunavailable, which may lead to system hang.\n\nMark the I2C adapter as suspended during noirq suspend and block new\ntransfers until resume, ensuring that I2C transfers are only issued\nwhen hardware resources are available.",
  "id": "GHSA-mxwh-8xg9-m967",
  "modified": "2026-07-25T12:31:28Z",
  "published": "2026-07-25T12:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64278"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/218cfe364b55b2768221629bd4a69ad190b7fbbc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5800647d19d3f1f747fda4dc67e55d6afa6ee119"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b2523f26979e0b5bd1422772176b2233fcd1f6d0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-64278 (GCVE-0-2026-64278)

GHSA-MXWH-8XG9-M967

Tags

Sightings

Nomenclature