CVE-2023-53310 power: supply: axp288_fuel_gauge: Fix external_power_changed race
A race condition in the Linux kernel AXP288 fuel gauge driver can cause a NULL pointer dereference, leading to a system crash.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-53310?
CVE-2023-53310 is a medium-severity vulnerability in Linux kernel, published on 16 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
power: supply: axp288_fuel_gauge: Fix external_power_changed race
fuel_gauge_external_power_changed() dereferences info->bat, which gets sets in axp288_fuel_gauge_probe() like this:
info->bat = devm_power_supply_register(dev, &fuel_gauge_desc, &psy_cfg);
As soon as devm_power_supply_register() has called device_add() the external_power_changed callback can get called. So there is a window where fuel_gauge_external_power_changed() may get called while info->bat has not been set yet leading to a NULL pointer dereference.
Fixing this is easy. The external_power_changed callback gets passed the power_supply which will eventually get stored in info->bat, so fuel_gauge_external_power_changed() can simply directly use the passed in psy argument which is always valid.
Weakness: CWE-362
Which versions are affected by CVE-2023-53310?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53310?
Apply the vendor's patch.
Is CVE-2023-53310 being exploited?
There is no known exploitation of CVE-2023-53310 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2023-53310, DEBIAN-CVE-2023-53310, GHSA-c4mr-qx6r-6753, UBUNTU-CVE-2023-53310.