Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 16845c5d540929d2f4dc845f11fbbb238e69170a before 977c2934064969503cabf98b1135d202ff62822e; affected 16845c5d540929d2f4dc845f11fbbb238e69170a before 5118b5fdf1eb9922a0cdd2afd25252081e2d4302; affected 16845c5d540929d2f4dc845f11fbbb238e69170a before a9bb8f8fd5694185c2f71ff91869afb300aab392; affected 16845c5d540929d2f4dc845f11fbbb238e69170a before 03bdbf182082694ab2add620d85f1a8b8f51bbbc; affected 16845c5d540929d2f4dc845f11fbbb238e69170a before 5c2cb3dd1447752b73d4f44d6b7434bc5259bfec; affected 16845c5d540929d2f4dc845f11fbbb238e69170a before 7c8deb77d05bcc8f79e255f669d82ec6ce91be12; affected 16845c5d540929d2f4dc845f11fbbb238e69170a before 036d28db1818af2f9d80db771f5405da84d7732d |
| Linux / Linux | affected 5.11; unaffected 0 before 5.11; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.55 through 6.18.*; unaffected 7.2.9 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
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