CVE-2025-38634 power: supply: cpcap-charger: Fix null check for power_supply_get_by_name
A missing null check in the Linux kernel's cpcap-charger driver can lead to a null pointer dereference, causing 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-2025-38634?
CVE-2025-38634 is a medium-severity vulnerability in Debian Debian Linux, published on 22 Aug 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: cpcap-charger: Fix null check for power_supply_get_by_name
In the cpcap_usb_detect() function, the power_supply_get_by_name() function may return `NULL` instead of an error pointer. To prevent potential null pointer dereferences, Added a null check.
Weakness: CWE-476
Which versions are affected by CVE-2025-38634?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-38634?
Apply the vendor's patch.
Is CVE-2025-38634 being exploited?
There is no known exploitation of CVE-2025-38634 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-66647, BELL-CVE-2025-38634, DEBIAN-CVE-2025-38634, GHSA-v489-2rf4-qq7m, ROOT-OS-DEBIAN-12-CVE-2025-38634, ROOT-OS-DEBIAN-13-CVE-2025-38634 and 3 more.