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CVE-2026-89475

UnknownEPSS 0.20%

Last modified

CVE-2026-89475 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.20%

9.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 2219a935963e5eeb19e5abfb99475fcc06bbb804, < 9d77fd7dd9a3ad57f7655c5264b503b85adbb7b8; >= 2219a935963e5eeb19e5abfb99475fcc06bbb804, < a279e64c907f5638bb34cb8e2c9285798cf5f690; >= 2219a935963e5eeb19e5abfb99475fcc06bbb804, < 6d2eb93975c07b0169a3287efc1ae3b60cf52d8e; >= 2219a935963e5eeb19e5abfb99475fcc06bbb804, < 861ec73ce86e2ca18082cc7be4f140a5bbdf1428; >= 2219a935963e5eeb19e5abfb99475fcc06bbb804, < f495808cdd6d9576965787cf6d9737d0b0e86b73; >= 2219a935963e5eeb19e5abfb99475fcc06bbb804, < 47ccbad210f48721c30d69d65b83dc9fff919ca9; >= 2219a935963e5eeb19e5abfb99475fcc06bbb804, < 9d34c9d660c3d0931d2cc749c46c47cf31f96e48
LinuxLinux4.2

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-89475?
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.
How severe is CVE-2026-89475?
Severity scoring for CVE-2026-89475 is pending analysis. The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-89475?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST