linux-kernel - Re: NULL-ptr deref in kvm_arch_vcpu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 18 Aug 2016 17:16:56 -0700
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Robert Święcki <robert@...ecki.net>,
        LKML <linux-kernel@...r.kernel.org>,
        Borislav Petkov <bp@...en8.de>
Subject: Re: NULL-ptr deref in kvm_arch_vcpu_ioctl under AMD CPUs

On Thu, Aug 18, 2016 at 4:58 AM, Paolo Bonzini <pbonzini@...hat.com> wrote:
>
>
> On 19/02/2016 15:06, Robert Święcki wrote:
>> Hi,
>>
>> This seems non-exploitable due to mmap_min_addr, so I guess it should
>> be treated just as a regular bug
>
> Probably fixed by commit 4c5ea0a9cd02 ("locking/static_key: Fix
> concurrent static_key_slow_inc()", 2016-06-21).  There should be no
> outstanding syzkaller reports for KVM now!

Thanks for the update. I will try to reenable kvm fuzzing on my
syzkaller instances.
Just to make sure, you mean all bugs prefixed with kvm: here, right?
https://github.com/google/syzkaller/wiki/Found-Bugs