qxl: check release info object
commitd52680fc932efb8a2f334cc6993e705ed1e31e99
authorPrasad J Pandit <pjp@fedoraproject.org>
Thu, 25 Apr 2019 06:35:34 +0000 (25 12:05 +0530)
committerGerd Hoffmann <kraxel@redhat.com>
Tue, 7 May 2019 07:11:27 +0000 (7 09:11 +0200)
tree178da96cccb789d9fc341bef899dc57438f7ac60
parenta6ae23831b05a11880b40f7d58e332c45a6b04f7
qxl: check release info object

When releasing spice resources in release_resource() routine,
if release info object 'ext.info' is null, it leads to null
pointer dereference. Add check to avoid it.

Reported-by: Bugs SysSec <bugs-syssec@rub.de>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 20190425063534.32747-1-ppandit@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
hw/display/qxl.c