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CVE-2026-64023

gpio: aggregator: fix a potential use-after-free PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 before ea28b286649b70618e9dd3e895812417a7712a11; affected 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 before 7ac4183a41ba048af89eddd82fe8be64619d0871; affected 86f162e73d2d81ef6d819c06a3b6c2fda77a79b8 before 30c073cab97afb31901f94de9605177b6b84367e
Linux / Linuxaffected 6.16; unaffected 0 before 6.16; unaffected 6.18.34 through 6.18.*; unaffected 7.0.11 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References