Re: WARNING in kmem_cache_alloc_trace

From: Oliver Neukum
Date: Tue Aug 20 2019 - 09:24:12 EST


Am Montag, den 19.08.2019, 18:59 +0200 schrieb Andrey Konovalov:
> On Mon, Aug 19, 2019 at 6:18 PM syzbot
> <syzbot+0e7b6b6001ca8ed655f6@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit: d0847550 usb-fuzzer: main usb gadget fuzzer driver
> > git tree: https://github.com/google/kasan.git usb-fuzzer
> > console output: https://syzkaller.appspot.com/x/log.txt?x=16947fce600000
> > kernel config: https://syzkaller.appspot.com/x/.config?x=dbc9c80cc095da19
> > dashboard link: https://syzkaller.appspot.com/bug?extid=0e7b6b6001ca8ed655f6
> > compiler: gcc (GCC) 9.0.0 20181231 (experimental)
> > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1141c5ba600000
> > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11ed91d2600000
> >
> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > Reported-by: syzbot+0e7b6b6001ca8ed655f6@xxxxxxxxxxxxxxxxxxxxxxxxx
> >

#syz test: https://github.com/google/kasan.git d0847550