On Tue, Mar 1, 2022 at 8:33 AM Daniel Borkmann <daniel@xxxxxxxxxxxxx> wrote:
>
> On 3/1/22 12:23 AM, Stanislav Fomichev wrote:
> > Syzkaller reports another issue:
> > WARNING: CPU: 0 PID: 10775 at include/linux/thread_info.h:230
> > check_copy_size include/linux/thread_info.h:230 [inline]
> > WARNING: CPU: 0 PID: 10775 at include/linux/thread_info.h:230
> > copy_to_user include/linux/uaccess.h:199 [inline]
> > WARNING: CPU: 0 PID: 10775 at include/linux/thread_info.h:230
> > bpf_test_finish.isra.0+0x4b2/0x680 net/bpf/test_run.c:171
> >
> > This can happen when the userspace buffer is smaller than head+frags.
> > Return ENOSPC in this case.
> >
> > Fixes: 7855e0db150a ("bpf: test_run: add xdp_shared_info pointer in bpf_test_finish signature")
> > Cc: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
> > Signed-off-by: Stanislav Fomichev <sdf@xxxxxxxxxx>
>
> Do we have a Reported-by tag for syzkaller so it can match against its report?
Oops, sorry, totally forgot:
Reported-by: syzbot+5f81df6205ecbbc56ab5@xxxxxxxxxxxxxxxxxxxxxxxxx
