Messages in this thread | | | Date | Thu, 21 Sep 2017 10:37:39 +0200 | From | Johan Hovold <> | Subject | Re: usb/media/cx231xx: null-ptr-deref in cx231xx_usb_probe |
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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.
Thanks, Johan
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