Re: general protection fault in pvclock_gtod_notify

From: Sean Christopherson
Date: Tue Jun 30 2020 - 02:12:38 EST


On Fri, Jun 26, 2020 at 01:08:19PM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 4a21185c Merge git://git.kernel.org/pub/scm/linux/kernel/g..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=16958f4d100000
> kernel config: https://syzkaller.appspot.com/x/.config?x=bf3aec367b9ab569
> dashboard link: https://syzkaller.appspot.com/bug?extid=b46fb19f175c5c7d1f03
> compiler: gcc (GCC) 10.1.0-syz 20200507
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1080e9c5100000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1685d2e3100000

#syz dup: general protection fault in syscall_return_slowpath