# CVE-2026-89474

## Summary

- **CVE ID:** CVE-2026-89474
- **Severity:** UNKNOWN
- **CVSS Score:** 1.51
- **CWE:** N/A
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 16, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:

power: supply: bq256xx: drain usb_work before freeing the charger

The USB-PHY notifier queues usb_work, whose handler calls
power_supply_changed(bq->charger). The reset devm action only unregisters
the notifier and was registered before the power supplies, so devm frees
bq->charger on unwind before the action runs; a usb_work still queued can
then dereference it.

Register the reset action after the power supplies, so it unregisters
the notifiers and drains usb_work before the supplies are released.
Initialize usb_work and obtain the PHY references before registering
the notifiers, so the worker cannot run before the supplies exist.

Found by static analysis.

## Affected Products

- Linux — Linux (32e4978bb920d047fe5de3ea42d176f267c01f63)
- Linux — Linux (5.12)
- Linux — Linux (0)
- Linux — Linux (6.12.109)
- Linux — Linux (6.18.50)
- Linux — Linux (7.2.4)
- Linux — Linux (7.3-rc1)
- Linux — Linux (5.15.221)
- Linux — Linux (6.1.188)
- Linux — Linux (6.6.157)

## References

- [CNA](https://git.kernel.org/stable/c/9a467bd1e6811011026ad4c8de701b940d88a00c)
- [CNA](https://git.kernel.org/stable/c/9e1aba34df9a87d53460888e05718717c0f69343)
- [CNA](https://git.kernel.org/stable/c/c8addb842ae8dcf69c15fc976e33e3bd538a41d7)
- [CNA](https://git.kernel.org/stable/c/2dd6cd823777bea6d9a880a12a92a73ec76aee0b)
- [CNA](https://git.kernel.org/stable/c/9dcfdf6c598301b278f0b3490eb2bf4f600524e2)
- [CNA](https://git.kernel.org/stable/c/fd08d4dbbec07a44f01b0ddb041912be0dc88f8c)
- [CNA](https://git.kernel.org/stable/c/2cfb59dc9df8b5ebdd95e3d874a7f4690cee2bc8)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.17%
- **EPSS Percentile:** 7.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._