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

gpio: aggregator: fix a potential use-after-free

On error we free aggr->lookups->dev_id before removing the entry from
the lookup table. If a concurrent thread calls gpiod_find() before we
remove the entry, it could iterate over the list and call
gpiod_match_lookup_table() which unconditionally dereferences dev_id
when calling strcmp(). Reverse the order of cleanup.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00166.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 affected < ea28b286649b70618e9dd3e895812417a7712a11
86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 affected < 7ac4183a41ba048af89eddd82fe8be64619d0871
86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 affected < 30c073cab97afb31901f94de9605177b6b84367e
Linux Linux affected
Version Status Constraints
6.16 affected —
0 unaffected < 6.16
6.18.34 unaffected ≤ 6.18.*
7.0.11 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/30c073cab97afb31901f94de9605177b6b84367e cve-icon
https://git.kernel.org/stable/c/7ac4183a41ba048af89eddd82fe8be64619d0871 cve-icon
https://git.kernel.org/stable/c/ea28b286649b70618e9dd3e895812417a7712a11 cve-icon
History

Mon, 20 Jul 2026 14:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Sun, 19 Jul 2026 15:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: gpio: aggregator: fix a potential use-after-free On error we free aggr->lookups->dev_id before removing the entry from the lookup table. If a concurrent thread calls gpiod_find() before we remove the entry, it could iterate over the list and call gpiod_match_lookup_table() which unconditionally dereferences dev_id when calling strcmp(). Reverse the order of cleanup.
Title gpio: aggregator: fix a potential use-after-free
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-07-20T13:42:27.952Z

Reserved: 2026-07-19T07:54:57.027Z

Link: CVE-2026-64023

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.