What happened
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.
Affected versions
Linux: 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 through before ea28b286649b70618e9dd3e895812417a7712a11 (git); 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 through before 7ac4183a41ba048af89eddd82fe8be64619d0871 (git); 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 through before 30c073cab97afb31901f94de9605177b6b84367e (git); 6.16 Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.