CVE-2026-68212 media: saa7134: Fix a possible memory leak in saa7134_video_init1
A memory leak in the saa7134 video driver during device probing can lead to resource exhaustion and denial of service.
- 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-2026-68212?
CVE-2026-68212 is a memory corruption vulnerability in Linux, published on 10 Aug 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: saa7134: Fix a possible memory leak in saa7134_video_init1
In saa7134_video_init1(), the return value of the first saa7134_pgtable_alloc() is not checked. If it fails, the function continues as if successful, leaving the driver with an invalid page table. Additionally, if vb2_queue_init() for the VBI queue fails after the video queue page table has been allocated, the allocated memory is not freed before returning. The second saa7134_pgtable_alloc() also lacks a return value check. Errors occur during device probing before the device is fully registered, the normal cleanup path in saa7134_finidev() is not executed, leading to memory leaks and potential use of uninitialized DMA resources.
Check the return value of both saa7134_pgtable_alloc() calls and propagate errors. On failure of any later step, free allocated page tables to avoid memory leaks. Ensure control handlers are also released on error to prevent further resource leakage.
Found by code review.
Which versions are affected by CVE-2026-68212?
How do I fix CVE-2026-68212?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-68212 being exploited?
There is no known exploitation of CVE-2026-68212 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68212, DEBIAN-CVE-2026-68212, GHSA-f8wh-4fq2-8xv3, UBUNTU-CVE-2026-68212.