CVE-2026-98606
Published: October 21, 2026Last modified: October 21, 2026
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.
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.189-r0) |
| 25 LTS | linux-lts | Fixed (6.12.112-r0) | |
| Stream | linux-lts | Fixed (6.18.55-r0) |
References
- https://git.kernel.org/stable/c/036d28db1818af2f9d80db771f5405da84d7732d
- https://git.kernel.org/stable/c/03bdbf182082694ab2add620d85f1a8b8f51bbbc
- https://git.kernel.org/stable/c/5118b5fdf1eb9922a0cdd2afd25252081e2d4302
- https://git.kernel.org/stable/c/5c2cb3dd1447752b73d4f44d6b7434bc5259bfec
- https://git.kernel.org/stable/c/7c8deb77d05bcc8f79e255f669d82ec6ce91be12
- https://git.kernel.org/stable/c/977c2934064969503cabf98b1135d202ff62822e
- https://git.kernel.org/stable/c/a9bb8f8fd5694185c2f71ff91869afb300aab392