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SubjectRe: usb/media/cx231xx: null-ptr-deref in cx231xx_usb_probe
On Wed, Sep 20, 2017 at 08:54:08PM +0200, Andrey Konovalov wrote:
> Hi!
> I've got the following report while fuzzing the kernel with syzkaller.
> On commit ebb2c2437d8008d46796902ff390653822af6cc4 (Sep 18).
> The null-ptr-deref happens on assoc_desc->bFirstInterface, where
> assoc_desc = udev->actconfig->intf_assoc[0]. There seems to be no
> check that the device actually contains an Interface Association
> Descriptor.

That is indeed a bug; I'll respond to this mail with a fix.


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