CVE-2026-46224 drm/xe: Fix bo leak in xe_dma_buf_init_obj() on allocation failure
A memory leak in the Linux kernel's Xe GPU driver can lead to resource exhaustion and denial of service upon allocation failure.
- 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-2026-46224?
CVE-2026-46224 is a medium-severity memory corruption 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 bo leak in xe_dma_buf_init_obj() on allocation failure
When drm_gpuvm_resv_object_alloc() fails, the pre-allocated storage bo is not freed. Add xe_bo_free(storage) before returning the error.
xe_dma_buf_init_obj() calls xe_bo_init_locked(), which frees the bo on error. Therefore, xe_dma_buf_init_obj() must also free the bo on its own error paths. Otherwise, since xe_gem_prime_import() cannot distinguish whether the failure originated from xe_dma_buf_init_obj() or from xe_bo_init_locked(), it cannot safely decide whether the bo should be freed.
Add comments documenting the ownership semantics: on success, ownership of storage is transferred to the returned drm_gem_object; on failure, storage is freed before returning.
v2: Add comments to explain the free logic.
(cherry picked from commit 78a6c5f899f22338bbf48b44fb8950409c5a69b9)
Weakness: CWE-401
Which versions are affected by CVE-2026-46224?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46224?
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-2026-46224 being exploited?
There is no known exploitation of CVE-2026-46224 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-46224, DEBIAN-CVE-2026-46224, GHSA-jcp9-g46r-j6hh, UBUNTU-CVE-2026-46224.