# CVE-2026-89473

## Summary

- **CVE ID:** CVE-2026-89473
- **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: bq25890: Fix power_supply reference leak

bq25890_fw_probe() acquires a reference to a secondary charger using
power_supply_get_by_name(), but the reference is not released on later
probe failures or on driver detach.

In particular, failures after bq25890_fw_probe() returns successfully,
such as a failure in bq25890_hw_init(), also leak the reference.

Register a device-managed cleanup action immediately after acquiring
the secondary charger. This releases the reference on all subsequent
probe failures and on driver detach.

Found by code review.

## Affected Products

- Linux — Linux (d54bf877fd878ee45cbc88d399fb98b0b1c4484d)
- Linux — Linux (6.3)
- 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 (6.6.157)

## References

- [CNA](https://git.kernel.org/stable/c/81b558afda9321c1a70971a39071d156f3e26950)
- [CNA](https://git.kernel.org/stable/c/238320ad029a3eedabb86286a28cab55bca629b9)
- [CNA](https://git.kernel.org/stable/c/58f1025eca92734eadc063715b98f62538286468)
- [CNA](https://git.kernel.org/stable/c/863c32a83e4235eb0cbf6106f2b124e645302156)
- [CNA](https://git.kernel.org/stable/c/976c10d883a02968f3f58be0cee499d1fd2ba68a)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.20%
- **EPSS Percentile:** 10.1

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