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ui/spice-display: check NULL pointer in interface_release_resource()

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Check rext.info to avoid potential NULL pointer dereference. A similar check
exists in interface_release_resource() in hw/display/qxl.c.

Reported-by: Yu Lu <ini.universe@gmail.com>
Signed-off-by: Mauro Matteo Cascella <mcascell@redhat.com>
Reviewed-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-Id: <20210520105833.183160-1-mcascell@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Mauro Matteo Cascella 2021-05-20 12:58:33 +02:00 committed by Gerd Hoffmann
parent 4087ecb842
commit e932e9f327
1 changed files with 4 additions and 0 deletions
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4
ui/spice-display.c
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@ -561,6 +561,10 @@ static void interface_release_resource(QXLInstance *sin,
SimpleSpiceCursor *cursor;
QXLCommandExt *ext;
if (!rext.info) {
return;
}
ext = (void *)(intptr_t)(rext.info->id);
switch (ext->cmd.type) {
case QXL_CMD_DRAW: