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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
16845c5d540929d2f4dc845f11fbbb238e69170a to < 977c2934064969503cabf98b1135d202ff62822eaffected16845c5d540929d2f4dc845f11fbbb238e69170a to < 5118b5fdf1eb9922a0cdd2afd25252081e2d4302affected16845c5d540929d2f4dc845f11fbbb238e69170a to < a9bb8f8fd5694185c2f71ff91869afb300aab392affected16845c5d540929d2f4dc845f11fbbb238e69170a to < 03bdbf182082694ab2add620d85f1a8b8f51bbbcaffected16845c5d540929d2f4dc845f11fbbb238e69170a to < 5c2cb3dd1447752b73d4f44d6b7434bc5259bfecaffected16845c5d540929d2f4dc845f11fbbb238e69170a to < 7c8deb77d05bcc8f79e255f669d82ec6ce91be12affected16845c5d540929d2f4dc845f11fbbb238e69170a to < 036d28db1818af2f9d80db771f5405da84d7732daffected
Linux Linux
Default version status: affected
5.11affected0 to < 5.11unaffected5.15.222 to ≤ 5.15.*unaffected6.1.189 to ≤ 6.1.*unaffected6.6.158 to ≤ 6.6.*unaffected6.12.112 to ≤ 6.12.*unaffected6.18.55 to ≤ 6.18.*unaffected7.2.9 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/977c2934064969503cabf98b1135d202ff62822e ↗
- https://git.kernel.org/stable/c/5118b5fdf1eb9922a0cdd2afd25252081e2d4302 ↗
- https://git.kernel.org/stable/c/a9bb8f8fd5694185c2f71ff91869afb300aab392 ↗
- https://git.kernel.org/stable/c/03bdbf182082694ab2add620d85f1a8b8f51bbbc ↗
- https://git.kernel.org/stable/c/5c2cb3dd1447752b73d4f44d6b7434bc5259bfec ↗
- https://git.kernel.org/stable/c/7c8deb77d05bcc8f79e255f669d82ec6ce91be12 ↗
- https://git.kernel.org/stable/c/036d28db1818af2f9d80db771f5405da84d7732d ↗