PT-2026-61340 · Linux · Linux

CVE-2026-64023 · Published 2026-07-19 · Updated 2026-07-19

NVD

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Fix

Related Identifiers

CVE-2026-64023

Affected Products

Linux

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-64023 · Security Note
• https://git.kernel.org/stable/c/7ac4183a41ba048af89eddd82fe8be64619d0871 · Note
• https://git.kernel.org/stable/c/ea28b286649b70618e9dd3e895812417a7712a11 · Note
• https://git.kernel.org/stable/c/30c073cab97afb31901f94de9605177b6b84367e · Note