On Mon, Sep 28, 2020 at 10:54 AM Borislav Petkov <b...@alien8.de> wrote: > > On Mon, Sep 28, 2020 at 10:40:19AM +0200, Dmitry Vyukov wrote: > > I meant the kernel self-corrupts itself, that just wasn't detected by > > KASAN, page protections, etc. > > Well, Nick already asked this but we're marking all kernel text RO early > during boot. So it either is happening before that or something else > altogether is going on. > > And if that is a kernel issue, I believe we should've heard by now from > others. Or maybe this happens only in VMs. > > Questions over questions...
I don't have answers to all of the questions, but syzkaller produces a pretty unique workload. It has found thousands of bugs that you have not heard from others: https://syzkaller.appspot.com/upstream#open https://syzkaller.appspot.com/upstream/fixed In particular there are hundreds of known and active potential memory corruption bugs. It may be related to VMs, but also may well not be related to VMs.
