CVE-2026-43146 media: iris: Add buffer to list only after successful allocation
A flaw in the Linux kernel iris media driver could leave partially initialized buffers in a list upon allocation failure, potentially causing memory leaks or inconsistent states.
- 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-2026-43146?
CVE-2026-43146 is a medium-severity memory corruption vulnerability in Linux kernel, published on 6 May 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: iris: Add buffer to list only after successful allocation
Move `list_add_tail()` to after `dma_alloc_attrs()` succeeds when creating internal buffers. Previously, the buffer was enqueued in `buffers->list` before the DMA allocation. If the allocation failed, the function returned `-ENOMEM` while leaving a partially initialized buffer in the list, which could lead to inconsistent state and potential leaks.
By adding the buffer to the list only after `dma_alloc_attrs()` succeeds, we ensure the list contains only valid, fully initialized buffers.
Which versions are affected by CVE-2026-43146?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-43146?
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-2026-43146 being exploited?
There is no known exploitation of CVE-2026-43146 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-43146, DEBIAN-CVE-2026-43146, GHSA-26jf-v4w3-xhqx, UBUNTU-CVE-2026-43146.