power: supply: ucs1002: fix use-after-free on remove (CVE-2026-89463) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89463

power: supply: ucs1002: fix use-after-free on remove

Answer in brief

CVE-2026-89463 records a Unknown severity vulnerability in power: supply: ucs1002: fix use-after-free on remove. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=81196e2e57fc5b88f6b8ca98372a3dde047aa49d <4ca2a4678202f15eb790eb7f1d562061709caea7 \|\| >=81196e2e57fc5b88f6b8ca98372a3dde047aa49d <39b60d615dfa1725c235351fb12bc72e5f8a8d32 \|\| >=81196e2e57fc5b88f6b8ca98372a3dde047aa49d <35242c93d35f391afdc84cef6236b8ad57f1df24 \|\| >=81196e2e57fc5b88f6b8ca98372a3dde047aa49d <609af0ceeaefdfa42cd01dd060b20f2e41f9a232	4ca2a4678202f15eb790eb7f1d562061709caea7, 39b60d615dfa1725c235351fb12bc72e5f8a8d32, 35242c93d35f391afdc84cef6236b8ad57f1df24, 609af0ceeaefdfa42cd01dd060b20f2e41f9a232
Linux/Linuxgeneric	5.10	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 4ca2a4678202f15eb790eb7f1d562061709caea7 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: power: supply: ucs1002: fix use-after-free on remove ucs1002 has no remove callback, so unbind runs entirely through devm. The alert IRQ handler queues the health_poll delayed work, and the work reschedules itself while the chip reports a bad-health condition. devm frees the alert IRQ, which only synchronizes the handler; it does not cancel the delayed work, which can then run after devm frees the driver data and dereference it. Register health_poll with devm_delayed_work_autocancel() before the alert IRQ is requested. devm then frees the IRQ before cancelling the work, so the handler can no longer queue it and the work is cancelled before the driver data is freed. This issue was found by an in-house static analysis tool.

Quoted source text, attributed separately from HOL analysis.