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GHSA-G8CM-QF26-VX33

Vulnerability from github – Published: 2026-08-06 09:30 – Updated: 2026-08-06 09:30

Details

In the Linux kernel, the following vulnerability has been resolved:

i2c: core: fix NULL-deref on adapter registration failure

If adapter registration ever fails the release callback would trigger a NULL-pointer dereference as the completion struct has not been initialised.

Note that before the offending commit this would instead have resulted in a minor memory leak of the adapter name.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64589"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-06T08:16:34Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: core: fix NULL-deref on adapter registration failure\n\nIf adapter registration ever fails the release callback would trigger a\nNULL-pointer dereference as the completion struct has not been\ninitialised.\n\nNote that before the offending commit this would instead have resulted\nin a minor memory leak of the adapter name.",
  "id": "GHSA-g8cm-qf26-vx33",
  "modified": "2026-08-06T09:30:32Z",
  "published": "2026-08-06T09:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64589"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/034e307428119b67f5f18a35e4f4e7d15a2b9774"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2295d2bb101faa663fbc45fadbb3fec45f107441"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ce0a74bfa3acdfcdb00cf02f181f2754b451f42"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3351c5e77749a0c8a1e252b95420c143ebcf07ac"
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  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-64589 (GCVE-0-2026-64589)

Vulnerability from cvelistv5 – Published: 2026-08-06 07:13 – Updated: 2026-08-06 07:13

Title

i2c: core: fix NULL-deref on adapter registration failure

Summary

In the Linux kernel, the following vulnerability has been resolved: i2c: core: fix NULL-deref on adapter registration failure If adapter registration ever fails the release callback would trigger a NULL-pointer dereference as the completion struct has not been initialised. Note that before the offending commit this would instead have resulted in a minor memory leak of the adapter name.

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/2ce0a74bfa3acdfcd…
https://git.kernel.org/stable/c/3351c5e77749a0c8a…
https://git.kernel.org/stable/c/034e307428119b67f…
https://git.kernel.org/stable/c/2295d2bb101faa663…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e19f31169f85c712c9fca35bfd28ceb093a9f574 , < 2ce0a74bfa3acdfcdb00cf02f181f2754b451f42 (git) Affected: 3f8c4f5e9a57868fa107016c81165686d23325f2 , < 3351c5e77749a0c8a1e252b95420c143ebcf07ac (git) Affected: 3f8c4f5e9a57868fa107016c81165686d23325f2 , < 034e307428119b67f5f18a35e4f4e7d15a2b9774 (git) Affected: 3f8c4f5e9a57868fa107016c81165686d23325f2 , < 2295d2bb101faa663fbc45fadbb3fec45f107441 (git) Affected: 6.12.11 , < 6.12.96 (semver)
Linux	Linux	Affected: 6.13 Unaffected: 0 , < 6.13 (semver) Unaffected: 6.12.96 , ≤ 6.12.* (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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          "programFiles": [
            "drivers/i2c/i2c-core-base.c"
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              "version": "7.2-rc1",
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    "datePublished": "2026-08-06T07:13:47.291Z",
    "dateReserved": "2026-07-19T15:36:31.798Z",
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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

GHSA-G8CM-QF26-VX33

CVE-2026-64589 (GCVE-0-2026-64589)

Tags

Sightings

Nomenclature