Re: KASAN: null-ptr-deref Read in kvm_arch_check_processor_compat

[Sean Christopherson <sean.j.christopherson@xxxxxxxxx>]

On Tue, Jun 23, 2020 at 05:17:15AM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following crash on:
> 
> HEAD commit:    7ae77150 Merge tag 'powerpc-5.8-1' of git://git.kernel.org..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=135e7235100000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=d195fe572fb15312
> dashboard link: https://syzkaller.appspot.com/bug?extid=a99874f5323ce6088e53
> compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14d001be100000

#syz dup: general protection fault in syscall_return_slowpath