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.
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Mon, 20 Jul 2026 14:45:00 +0000
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| Metrics |
cvssV3_1
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Sun, 19 Jul 2026 15:45:00 +0000
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| 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 |
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-07-20T13:42:27.952Z
Reserved: 2026-07-19T07:54:57.027Z
Link: CVE-2026-64023
No data.
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OpenCVE Enrichment
Updated: 2026-07-21T07:30:03Z
No weakness.