---
cve: "CVE-2026-89473"
severity: "LOW"
cvss: 3.1
epss: "20%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-09-11 20:19:28"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T10:49:15+02:00"
---

# CVE-2026-89473

> 3.1 LOW

## Beschreibung

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.

## Patch verfügbar (OSV)

- Kernel ≥ 6.6.157
- Kernel ≥ 6.12.109
- Kernel ≥ 6.18.50
- Kernel ≥ 7.2.4

## Referenzen

- <https://git.kernel.org/stable/c/976c10d883a02968f3f58be0cee499d1fd2ba68a>
- <https://git.kernel.org/stable/c/81b558afda9321c1a70971a39071d156f3e26950>
- <https://git.kernel.org/stable/c/238320ad029a3eedabb86286a28cab55bca629b9>
- <https://git.kernel.org/stable/c/58f1025eca92734eadc063715b98f62538286468>
- <https://git.kernel.org/stable/c/863c32a83e4235eb0cbf6106f2b124e645302156>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-89473) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_