CVEvulnerability
CVE-2026-98606
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/virtio: release the GEM object on virtio_gpu_vram_create() errors
virtio_gpu_vram_create() frees the object with a bare kfree(vram) on
both error paths after drm_gem_private_object_init() has run, and on the
second one after drm_gem_create_mmap_offset() has linked obj->vma_node
into the device's VMA offset manager. The freed object stays in that
interval tree, so a later lookup or insertion walks freed memory, and
the dma_resv and gpuva lock are never destroyed.
Call drm_gem_object_release() before kfree() on both paths.
References
- https://git.kernel.org/stable/c/036d28db1818af2f9d80db771f5405da84d7732d git.kernel.org
- https://git.kernel.org/stable/c/03bdbf182082694ab2add620d85f1a8b8f51bbbc git.kernel.org
- https://git.kernel.org/stable/c/5118b5fdf1eb9922a0cdd2afd25252081e2d4302 git.kernel.org
- https://git.kernel.org/stable/c/5c2cb3dd1447752b73d4f44d6b7434bc5259bfec git.kernel.org
- https://git.kernel.org/stable/c/7c8deb77d05bcc8f79e255f669d82ec6ce91be12 git.kernel.org
- https://git.kernel.org/stable/c/977c2934064969503cabf98b1135d202ff62822e git.kernel.org
- https://git.kernel.org/stable/c/a9bb8f8fd5694185c2f71ff91869afb300aab392 git.kernel.org