power: supply: bq25890: Fix power_supply reference leak (CVE-2026-89473) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89473

power: supply: bq25890: Fix power_supply reference leak

Answer in brief

CVE-2026-89473 records a Unknown severity vulnerability in power: supply: bq25890: Fix power_supply reference leak. 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	>=d54bf877fd878ee45cbc88d399fb98b0b1c4484d <81b558afda9321c1a70971a39071d156f3e26950 \|\| >=d54bf877fd878ee45cbc88d399fb98b0b1c4484d <238320ad029a3eedabb86286a28cab55bca629b9 \|\| >=d54bf877fd878ee45cbc88d399fb98b0b1c4484d <58f1025eca92734eadc063715b98f62538286468 \|\| >=d54bf877fd878ee45cbc88d399fb98b0b1c4484d <863c32a83e4235eb0cbf6106f2b124e645302156	81b558afda9321c1a70971a39071d156f3e26950, 238320ad029a3eedabb86286a28cab55bca629b9, 58f1025eca92734eadc063715b98f62538286468, 863c32a83e4235eb0cbf6106f2b124e645302156
Linux/Linuxgeneric	6.3	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 81b558afda9321c1a70971a39071d156f3e26950 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: 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.

Quoted source text, attributed separately from HOL analysis.