CVE-2025-38138 dmaengine: ti: Add NULL check in udma_probe()
A missing NULL check in the TI DMA driver probe function can cause a kernel crash if memory allocation fails, leading to denial of service.
- 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-2025-38138?
CVE-2025-38138 is a medium-severity vulnerability in Debian Debian Linux, published on 3 Jul 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:
dmaengine: ti: Add NULL check in udma_probe()
devm_kasprintf() returns NULL when memory allocation fails. Currently, udma_probe() does not check for this case, which results in a NULL pointer dereference.
Add NULL check after devm_kasprintf() to prevent this issue.
Weakness: CWE-476
Which versions are affected by CVE-2025-38138?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2025-38138?
Apply the vendor's patch.
Is CVE-2025-38138 being exploited?
There is no known exploitation of CVE-2025-38138 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as AZL-64559, BELL-CVE-2025-38138, DEBIAN-CVE-2025-38138, GHSA-c938-f9vc-p38c, ROOT-OS-DEBIAN-11-CVE-2025-38138, ROOT-OS-DEBIAN-12-CVE-2025-38138 and 3 more.