http://git.qemu.org/?p=qemu.git;a=patch;h=204f01b30975923c64006f8067f0937b91eea68b this patch is from qemu-git. From 204f01b30975923c64006f8067f0937b91eea68b Mon Sep 17 00:00:00 2001 From: Li Qiang Date: Thu, 29 Dec 2016 04:28:41 -0500 Subject: [PATCH] virtio-gpu: fix memory leak in resource attach backing In the resource attach backing function, everytime it will allocate 'res->iov' thus can leading a memory leak. This patch avoid this. Signed-off-by: Li Qiang Message-id: 1483003721-65360-1-git-send-email-liq3ea@gmail.com Signed-off-by: Gerd Hoffmann --- hw/display/virtio-gpu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 6a26258cac..ca88cf478d 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -714,6 +714,11 @@ virtio_gpu_resource_attach_backing(VirtIOGPU *g, return; } + if (res->iov) { + cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; + return; + } + ret = virtio_gpu_create_mapping_iov(&ab, cmd, &res->addrs, &res->iov); if (ret != 0) { cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; -- 2.11.0