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usb: add device checks before redirector calls to usb_ep_get()

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Add an assert and an explicit check before the two callers to
usb_ep_get() in the USB redirector code to ensure the device
passed in is not NULL.

Signed-off-by: Liam Merwick <liam.merwick@oracle.com>
Message-id: 1549460216-25808-9-git-send-email-liam.merwick@oracle.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Liam Merwick 2019-02-06 13:36:55 +00:00 committed by Gerd Hoffmann
parent e87fd1e6e5
commit 4fc12aa1fc
1 changed files with 2 additions and 1 deletions
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3
hw/usb/redirect.c
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@ -1728,6 +1728,7 @@ static void usbredir_ep_info(void *priv,
USBRedirDevice *dev = priv;
int i;
assert(dev != NULL);
for (i = 0; i < MAX_ENDPOINTS; i++) {
dev->endpoint[i].type = ep_info->type[i];
dev->endpoint[i].interval = ep_info->interval[i];
@ -2125,7 +2126,7 @@ static int usbredir_post_load(void *priv, int version_id)
{
USBRedirDevice *dev = priv;
if (dev->parser == NULL) {
if (dev == NULL || dev->parser == NULL) {
return 0;
}