vhost-user-gpu: fix memory leak in vg_resource_attach_backing (CVE-2021-3544)
authorLi Qiang <liq3ea@163.com>
Sun, 16 May 2021 03:03:58 +0000 (20:03 -0700)
committerGerd Hoffmann <kraxel@redhat.com>
Thu, 27 May 2021 09:55:59 +0000 (11:55 +0200)
commitb9f79858a614d95f5de875d0ca31096eaab72c3b
tree2bb16fb52b72119e812d30ca99d663091e27ce6a
parent86dd8fac2acc366930a5dc08d3fb1b1e816f4e1e
vhost-user-gpu: fix memory leak in vg_resource_attach_backing (CVE-2021-3544)

Check whether the 'res' has already been attach_backing to avoid
memory leak.

Fixes: CVE-2021-3544
Reported-by: Li Qiang <liq3ea@163.com>
virtio-gpu fix: 204f01b309 ("virtio-gpu: fix memory leak
in resource attach backing")

Signed-off-by: Li Qiang <liq3ea@163.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210516030403.107723-4-liq3ea@163.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
contrib/vhost-user-gpu/vhost-user-gpu.c