CVE-2026-89475

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

State
Published
Severity
Not scored
Published
Sep 11, 2026
Updated
Oct 30, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 2219a935963e5eeb19e5abfb99475fcc06bbb804 to before 9aace29bbcfa64450c53773ed2f20e95987b3690Affected
  • 2219a935963e5eeb19e5abfb99475fcc06bbb804 to before 9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8Affected
  • 2219a935963e5eeb19e5abfb99475fcc06bbb804 to before a279e64c907f5638bb34cb8e2c9285798cf5f690Affected
  • 2219a935963e5eeb19e5abfb99475fcc06bbb804 to before 6d2eb93975c07b0169a3287efc1ae3b60cf52d8eAffected
  • 2219a935963e5eeb19e5abfb99475fcc06bbb804 to before 861ec73ce86e2ca18082cc7be4f140a5bbdf1428Affected
  • 2219a935963e5eeb19e5abfb99475fcc06bbb804 to before f495808cdd6d9576965787cf6d9737d0b0e86b73Affected
  • 2219a935963e5eeb19e5abfb99475fcc06bbb804 to before 47ccbad210f48721c30d69d65b83dc9fff919ca9Affected
  • 2219a935963e5eeb19e5abfb99475fcc06bbb804 to before 9d34c9d660c3d0931d2cc749c46c47cf31f96e48Affected
LinuxLinux
  • 4.2Affected
  • before 4.2Not affected
  • 5.10.273 through 5.10.*Not affected
  • 5.15.221 through 5.15.*Not affected
  • 6.1.188 through 6.1.*Not affected
  • 6.6.157 through 6.6.*Not affected
  • 6.12.109 through 6.12.*Not affected
  • 6.18.50 through 6.18.*Not affected
  • 7.2.4 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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