CVE-2026-89475

Unknown

Description

In the Linux kernel, the following vulnerability has been resolved: power: supply: bq24257: fix use-after-free on remove The STAT-pin interrupt is devm-managed, so it stays armed until the devm cleanup that runs after remove() returns. remove() cancels bq->iilimit_setup_work while the threaded handler can still fire; that handler reschedules the work and dereferences bq, so the work runs against freed memory once devm frees bq. Make the delayed work device-managed with devm_delayed_work_autocancel(), registered before the interrupt request. The devm cleanup then releases the interrupt first, so the handler can no longer reschedule the work, and cancels the work before bq is freed. The explicit cancel_delayed_work_sync() in remove() is no longer needed and is dropped. Found by static analysis.

SeverityUnknown
CVSS—
Exploit probability—
ProductLinux
PublishedSep 11, 2026
First seenSep 11, 2026

How to fix

Update
  • Linux Linux9aace29bbcfa64450c53773ed2f20e95987b3690, 9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8, a279e64c907f5638bb34cb8e2c9285798cf5f690, 6d2eb93975c07b0169a3287efc1ae3b60cf52d8e, 861ec73ce86e2ca18082cc7be4f140a5bbdf1428, f495808cdd6d9576965787cf6d9737d0b0e86b73, 47ccbad210f48721c30d69d65b83dc9fff919ca9, 9d34c9d660c3d0931d2cc749c46c47cf31f96e48 or later

Affected products

ProductAffected versionsFixed in
Linux Linux2219a935963e5eeb19e5abfb99475fcc06bbb804 ≤ v < 9aace29bbcfa64450c53773ed2f20e95987b3690, 2219a935963e5eeb19e5abfb99475fcc06bbb804 ≤ v < 9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8, 2219a935963e5eeb19e5abfb99475fcc06bbb804 ≤ v < a279e64c907f5638bb34cb8e2c9285798cf5f690, 2219a935963e5eeb19e5abfb99475fcc06bbb804 ≤ v < 6d2eb93975c07b0169a3287efc1ae3b60cf52d8e, 2219a935963e5eeb19e5abfb99475fcc06bbb804 ≤ v < 861ec73ce86e2ca18082cc7be4f140a5bbdf1428, 2219a935963e5eeb19e5abfb99475fcc06bbb804 ≤ v < f495808cdd6d9576965787cf6d9737d0b0e86b73, 2219a935963e5eeb19e5abfb99475fcc06bbb804 ≤ v < 47ccbad210f48721c30d69d65b83dc9fff919ca9, 2219a935963e5eeb19e5abfb99475fcc06bbb804 ≤ v < 9d34c9d660c3d0931d2cc749c46c47cf31f96e48, 4.29aace29bbcfa64450c53773ed2f20e95987b3690, 9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8, a279e64c907f5638bb34cb8e2c9285798cf5f690, 6d2eb93975c07b0169a3287efc1ae3b60cf52d8e, 861ec73ce86e2ca18082cc7be4f140a5bbdf1428, f495808cdd6d9576965787cf6d9737d0b0e86b73, 47ccbad210f48721c30d69d65b83dc9fff919ca9, 9d34c9d660c3d0931d2cc749c46c47cf31f96e48

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