High 7.8Published Jul 19, 2026

CVE-2026-64023gpio: aggregator: fix a potential use-after-free

Updated under an hour ago (Oct 27, 2026, 1:00 AM ET)

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Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 before ea28b286649b70618e9dd3e895812417a7712a11; 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 builds before 7ac4183a41ba048af89eddd82fe8be64619d0871; 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 builds before 30c073cab97afb31901f94de9605177b6b84367e	CNA record
linux linux_kernel linux:linux_kernel	from 6.16 before 6.18.34; from 6.19 before 7.0.11; 7.1; 7.1; 7.1; 7.1	NVD

References

References

https://git.kernel.org/stable/c/ea28b286649b70618e9dd3e895812417a7712a11	patch
https://git.kernel.org/stable/c/7ac4183a41ba048af89eddd82fe8be64619d0871	patch
https://git.kernel.org/stable/c/30c073cab97afb31901f94de9605177b6b84367e	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.