On Thu, May 28, 2020 at 03:57:05PM +0800, Dongyang Zhan wrote: > Hi, > My name is Dongyang Zhan, I am a security researcher. > Currently, I found two possible memory bugs in > drivers/gpu/drm/virtio/virtgpu_vq.c (Linux 5.6). > I hope you can help me to confirm them. Thank you. Sorry. Not confirmed. You should do a better job verifying your claims before bugging people. > The first one is resp_buf will not be release in > virtio_gpu_cmd_get_display_info() with the condition > (resp_size <= MAX_INLINE_RESP_SIZE) in virtio_gpu_alloc_cmd_resp(). In that code path resp_size equals sizeof(struct virtio_gpu_resp_display_info) which is larger than MAX_INLINE_RESP_SIZE so the condition is never true and no leak happens. take care, Gerd _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
