CVE-2026-89473

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.