Messages in this thread | | | Date | Fri, 2 Aug 2019 09:48:28 -0400 | From | Sasha Levin <> | Subject | Re: [PATCH 5.2 03/20] ALSA: usb-audio: Sanity checks for each pipe and EP types |
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On Fri, Aug 02, 2019 at 11:39:57AM +0200, Greg Kroah-Hartman wrote: >From: Takashi Iwai <tiwai@suse.de> > >commit 801ebf1043ae7b182588554cc9b9ad3c14bc2ab5 upstream. > >The recent USB core code performs sanity checks for the given pipe and >EP types, and it can be hit by manipulated USB descriptors by syzbot. >For making syzbot happier, this patch introduces a local helper for a >sanity check in the driver side and calls it at each place before the >message handling, so that we can avoid the WARNING splats. > >Reported-by: syzbot+d952e5e28f5fb7718d23@syzkaller.appspotmail.com >Signed-off-by: Takashi Iwai <tiwai@suse.de> >Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit has a fix: 5d78e1c2b7f4b ("ALSA: usb-audio: Fix gpf in snd_usb_pipe_sanity_check") which was not pulled by Linus yet.
I'm going to drop this commit and re-queue it together with it's fix once it makes it upstream.
-- Thanks, Sasha
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