Re: KMSAN: kernel-usb-infoleak in pcan_usb_pro_send_req

[Andrey Konovalov <andreyknvl@google.com>]

On Tue, Aug 6, 2019 at 3:59 PM Alan Stern <stern@rowland.harvard.edu> wrote:
>
> On Tue, 6 Aug 2019, Andrey Konovalov wrote:
>
> > On Tue, Aug 6, 2019 at 2:45 PM Oliver Neukum <oneukum@suse.com> wrote:
> > >
> > > Am Dienstag, den 30.07.2019, 02:38 -0700 schrieb syzbot:
> > > > Hello,
> > > >
> > > > syzbot found the following crash on:
> > > >
> > > > HEAD commit:    41550654 [UPSTREAM] KVM: x86: degrade WARN to pr_warn_rate..
> > > > git tree:       kmsan
> > > > console output: https://syzkaller.appspot.com/x/log.txt?x=13e95183a00000
> > > > kernel config:  https://syzkaller.appspot.com/x/.config?x=40511ad0c5945201
> > > > dashboard link: https://syzkaller.appspot.com/bug?extid=513e4d0985298538bf9b
> > > > compiler:       clang version 9.0.0 (/home/glider/llvm/clang
> > > > 80fee25776c2fb61e74c1ecb1a523375c2500b69)
> > > > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17eafa1ba00000
> > > > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17b87983a00000
> > > >
> > > > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > > > Reported-by: syzbot+513e4d0985298538bf9b@syzkaller.appspotmail.com
> > >
> > > #syz test: https://github.com/google/kasan.git 41550654
> >
> > Hi Oliver,
> >
> > For KMSAN bugs you'll need to use the kmsan tree (syz test:
> > https://github.com/google/kmsan.git COMMIT_ID). I've updated the
> > testing instructions some time ago to reflect this. Sorry for the
> > complexity, this is caused by USB fuzzing and KMSAN not being upstream
> > yet.
>
> Maybe you can fix the "git tree:" header in the bug report.  It should
> say "https://github.com/google/kmsan.git" instead of just "kmsan".

Makes sense, will do, thanks!

>
> Alan Stern
>