Re: [PATCH] usb: core: Null deref in kernel with USB webcams.

[John Boero]

Then why does line 278 right below it check for NULL?

On Thu, Nov 12, 2020 at 5:56 PM Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Thu, Nov 12, 2020 at 05:13:30PM +0000, John Boero wrote:
> > Yes the patch is backwards sorry.  Testing alt proposal from
> > stern@xxxxxxxxxxxxxxxxxxx.  It may be a buggy driver
> > but it would be nice if a buggy driver couldn't bring down
> > the entire usb core. lsusb hangs until reboot or reset of usb.
>
> buggy kernel drivers can do anything, including deleting the contents of
> your disk.  We don't protect the kernel from itself, sorry :)
>
> good luck!
>
> greg k-h