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Review reviewHigh

CVE-2026-64279

Linux

In the Linux kernel, the following vulnerability has been resolved: i2c: core: fix adapter deregistration race Adapters can be looked up by their id using i2c_get_adapter() which takes a reference to the embedded struct device. Remove the adapter from the IDR before tearing it down during deregistration (and on registration failure) to make sure its resources are not accessed after having been freed (e.g. the device name).

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2026.07.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: i2c: core: fix adapter deregistration race Adapters can be looked up by their id using i2c_get_adapter() which takes a reference to the embedded struct device. Remove the adapter from the IDR before tearing it down during deregistration (and on registration failure) to make sure its resources are not accessed after having been freed (e.g. the device name).

Affected product and versions

Product
Linux
Affected versions
>= 35fc37f8188177e3ba3e7f99a6e3300e490e9181 < d39282f552dd6c35b9b84b4af78f1198c24f3373, >= 35fc37f8188177e3ba3e7f99a6e3300e490e9181 < 11dfa37bf544cc806f21742ca2fd2d841bd7032e, >= 35fc37f8188177e3ba3e7f99a6e3300e490e9181 < 9882a9bd74db08e7bae5821a7050627ae92d3380, >= 35fc37f8188177e3ba3e7f99a6e3300e490e9181 < bb234487a447a99315add1b46aa57b72e163e1eb, >= 35fc37f8188177e3ba3e7f99a6e3300e490e9181 < b6d2af6fe9c1f5ec0484536753c979cbd40a8ac3, >= 35fc37f8188177e3ba3e7f99a6e3300e490e9181 < 35dbd1f1f603401155cbd3a180bb18e3a3b675b8, >= 35fc37f8188177e3ba3e7f99a6e3300e490e9181 < b1a58ed9eab146b36f41a55db8f5d7ce9fdedf3f, >= 2.6.31
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available