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CVE-2026-98606

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Last modified

CVE-2026-98606 is a vulnerability of currently unknown severity. 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..

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 Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 16845c5d540929d2f4dc845f11fbbb238e69170a, < 977c2934064969503cabf98b1135d202ff62822e; >= 16845c5d540929d2f4dc845f11fbbb238e69170a, < 5118b5fdf1eb9922a0cdd2afd25252081e2d4302; >= 16845c5d540929d2f4dc845f11fbbb238e69170a, < a9bb8f8fd5694185c2f71ff91869afb300aab392; >= 16845c5d540929d2f4dc845f11fbbb238e69170a, < 03bdbf182082694ab2add620d85f1a8b8f51bbbc; >= 16845c5d540929d2f4dc845f11fbbb238e69170a, < 5c2cb3dd1447752b73d4f44d6b7434bc5259bfec; >= 16845c5d540929d2f4dc845f11fbbb238e69170a, < 7c8deb77d05bcc8f79e255f669d82ec6ce91be12; >= 16845c5d540929d2f4dc845f11fbbb238e69170a, < 036d28db1818af2f9d80db771f5405da84d7732d
LinuxLinux5.11

References

Timeline

Published
Last Modified
Status
Received

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 severe is CVE-2026-98606?
Severity scoring for CVE-2026-98606 is pending analysis.
How do I fix CVE-2026-98606?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST