What’s Vulnerable › Vulnerabilities

CVE-2026-98606: drm/virtio: release the GEM object on virtio_gpu_vram_create() errors

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-18 · updated 2026-10-19

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.

Affected products

• Linux kernel: 5.11 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

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

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