In the Linux kernel, the following vulnerability has been resolved:
power: supply: charger-manager: fix refcount leak in is_full_charged()
In is_full_charged(), power_supply_get_by_name() is called to
obtain a reference to the fuel_gauge power supply. If the
voltage check (uV >= desc->fullbatt_uV) succeeds, the function
returns true directly without releasing the reference, leaking
the refcount.
Fix this by setting a flag and jumping to the out label where
power_supply_put() properly drops the reference.
References 8
https://git.kernel.org/stable/c/193e6471e985c2f25d09b3fe96ec52f4eab89bd4
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3999f47e4bbf864e3c7fbfd813fb2f651e6b5714
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4373cfa38ead58f980362c841b0d0bdf8c4d956c
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6f75912cc6ff4c05ff13af351c4eea49b6b3c078
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/93b99b63ad5657225faf702670ddfeddf1f0ae29
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/afe3202c30bdff0635818ab525fe2694309d2692
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e44ad91e9f75f3e3ccbdb85ffe699471f9675e5b
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e8631b883338ea4c3b5d8ddfbe16407af9f0b4b9
416baaa9-dc9f-4396-8d5f-8c081fb06d67