CVE-2026-98606
Published Oct 18, 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.
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References
Other 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
Frequently Asked Questions
What is CVE-2026-98606? +
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.
How do I check if I'm vulnerable to CVE-2026-98606? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.