Re: KMSAN: kernel-usb-infoleak in pcan_usb_pro_send_req

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On Tue, 6 Aug 2019, Andrey Konovalov wrote:

> On Tue, Aug 6, 2019 at 2:45 PM Oliver Neukum <oneukum@xxxxxxxx> 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@xxxxxxxxxxxxxxxxxxxxxxxxx
> >
> > #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".

Alan Stern




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