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View File 0118-drm-virtio-don-t-leak-bo-on-drm_gem_object_init-fail.patch of Package drm (Project home:tiwai:bnc1050256)

From 366d9207d9e002bf1a6d9da13a7f8f85b8a40c0b Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu, 6 Apr 2017 17:59:40 +0200
Subject: [PATCH] drm/virtio: don't leak bo on drm_gem_object_init failure
Mime-version: 1.0
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Git-commit: 385aee965b4e4c36551c362a334378d2985b722a
Patch-mainline: 4.12-rc1
References: bsc#1047277 CVE-2017-10810

commit 385aee965b4e4c36551c362a334378d2985b722a upstream.

Reported-by: 李强 <liqiang6-s@360.cn>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170406155941.458-1-kraxel@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/virtio/virtgpu_object.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index 1483daebe057..6f66b7347cd0 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -81,8 +81,10 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
 		return -ENOMEM;
 	size = roundup(size, PAGE_SIZE);
 	ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, size);
-	if (ret != 0)
+	if (ret != 0) {
+		kfree(bo);
 		return ret;
+	}
 	bo->dumb = false;
 	virtio_gpu_init_ttm_placement(bo, pinned);
 
-- 
2.13.2