CVE-2026-89475

power: supply: bq24257: fix use-after-free on remove

N/A
Published: September 11, 2026 at 07:43 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2219a935963e5eeb19e5abfb99475fcc06bbb8044.2
Vendor states this is fixed in 47ccbad210f48721c30d69d65b83dc9fff919ca9 (fixed)
Vendor states this is fixed in 6d2eb93975c07b0169a3287efc1ae3b60cf52d8e (fixed)
Vendor states this is fixed in 861ec73ce86e2ca18082cc7be4f140a5bbdf1428 (fixed)
Vendor states this is fixed in 9d34c9d660c3d0931d2cc749c46c47cf31f96e48 (fixed)
Vendor states this is fixed in 9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8 (fixed)
Vendor states this is fixed in a279e64c907f5638bb34cb8e2c9285798cf5f690 (fixed)
Vendor states this is fixed in f495808cdd6d9576965787cf6d9737d0b0e86b73 (fixed)
Vendor states this is fixed in 4.2 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.109 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card