iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

media: b2c2-flexcop-usb: add sanity checking

Browse Source 
commit 1b976fc6d684e3282914cdbe7a8d68fdce19095c upstream.

The driver needs an isochronous endpoint to be present. It will
oops in its absence. Add checking for it.

Reported-by: syzbot+d93dff37e6a89431c158@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oliver Neukum 2019-07-30 09:48:27 +02:00 committed by Greg Kroah-Hartman
parent 1fa5c50f17
commit 2ab1da610f
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/media/usb/b2c2/flexcop-usb.c
View File

@ -538,6 +538,9 @@ static int flexcop_usb_probe(struct usb_interface *intf,
struct flexcop_device *fc = NULL;
int ret;
if (intf->cur_altsetting->desc.bNumEndpoints < 1)
return -ENODEV;
if ((fc = flexcop_device_kmalloc(sizeof(struct flexcop_usb))) == NULL) {
err("out of memory\n");
return -ENOMEM;