CVE-2026-64023
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
19/07/2026
Last modified:
30/07/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
gpio: aggregator: fix a potential use-after-free<br />
<br />
On error we free aggr->lookups->dev_id before removing the entry from<br />
the lookup table. If a concurrent thread calls gpiod_find() before we<br />
remove the entry, it could iterate over the list and call<br />
gpiod_match_lookup_table() which unconditionally dereferences dev_id<br />
when calling strcmp(). Reverse the order of cleanup.
Impact
Base Score 3.x
7.80
Severity 3.x
HIGH