power: supply: charger-manager: fix refcount leak in is_full_charged()
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 89% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/193e6471e985c2f25d09b3fe96ec52f4eab89bd4https://git.kernel.org/stable/c/3999f47e4bbf864e3c7fbfd813fb2f651e6b5714https://git.kernel.org/stable/c/4373cfa38ead58f980362c841b0d0bdf8c4d956chttps://git.kernel.org/stable/c/6f75912cc6ff4c05ff13af351c4eea49b6b3c078https://git.kernel.org/stable/c/93b99b63ad5657225faf702670ddfeddf1f0ae29https://git.kernel.org/stable/c/afe3202c30bdff0635818ab525fe2694309d2692https://git.kernel.org/stable/c/e44ad91e9f75f3e3ccbdb85ffe699471f9675e5bhttps://git.kernel.org/stable/c/e8631b883338ea4c3b5d8ddfbe16407af9f0b4b9