Re: general protection fault in perf_misc_flags

[Dmitry Vyukov]

On Wed, Sep 23, 2020 at 12:34 PM Borislav Petkov <bp@xxxxxxxxx> wrote:
>
> On Wed, Sep 23, 2020 at 11:24:48AM +0200, Dmitry Vyukov wrote:
> > 3. Run syzkaller locally with custom patches.
>
> Let's say I wanna build the kernel with clang-10 using your .config and
> run it in a vm locally. What are the steps in order to reproduce the
> same workload syzkaller runs in the guest on the GCE so that I can at
> least try get as close as possible to reproducing locally?

It's a random fuzzing workload. You can get this workload by running
syzkaller locally:
https://github.com/google/syzkaller/blob/master/docs/linux/setup_ubuntu-host_qemu-vm_x86-64-kernel.md

The exact clang compiler syzbot used is available here:
https://github.com/google/syzkaller/blob/master/docs/syzbot.md#crash-does-not-reproduce