CVE-2026-97507 media: dm1105: fix missing error check for dma_alloc_coherent
A missing error check in the dm1105 media driver allows a local attacker to cause a kernel crash via null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-97507?
CVE-2026-97507 is a vulnerability in Linux, published on 24 Sep 2026. 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:
media: dm1105: fix missing error check for dma_alloc_coherent
The return value of dm1105_dma_map(), which handles DMA memory allocation, is ignored in dm1105_hw_init(). If dma_alloc_coherent() fails, the driver will proceed using a NULL pointer for DMA transfers, leading to a kernel oops or invalid hardware access.
Fix this by checking the return value and propagating -ENOMEM on failure.
Which versions are affected by CVE-2026-97507?
How do I fix CVE-2026-97507?
Apply the vendor's patch.
Is CVE-2026-97507 being exploited?
There is no known exploitation of CVE-2026-97507 in the wild and no public exploit code.
Sources
Also known as AZL-103565, BELL-CVE-2026-97507, DEBIAN-CVE-2026-97507, GHSA-5qvr-cjrj-5r5p, UBUNTU-CVE-2026-97507.