CVE-2026-46201 drm/xe: Fix dma-buf attachment leak in xe_gem_prime_import()
A memory leak in the Linux kernel's DRM Xe driver allows attackers to cause a denial of service by exhausting system memory through repeated failed DMA buffer imports.
- 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-2026-46201?
CVE-2026-46201 is a high-severity denial of service vulnerability in Linux kernel, published on 28 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:
drm/xe: Fix dma-buf attachment leak in xe_gem_prime_import()
When xe_dma_buf_init_obj() fails, the attachment from dma_buf_dynamic_attach() is not detached. Add dma_buf_detach() before returning the error. Note: we cannot use goto out_err here because xe_dma_buf_init_obj() already frees bo on failure, and out_err would double-free it.
(cherry picked from commit a828eb185aac41800df8eae4b60501ccc0dbbe51)
Which versions are affected by CVE-2026-46201?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46201?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-46201 being exploited?
There is no known exploitation of CVE-2026-46201 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-46201, DEBIAN-CVE-2026-46201, GHSA-f9gx-frhw-g435, ROOT-OS-UBUNTU-2404-CVE-2026-46201, UBUNTU-CVE-2026-46201.