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Date: Tue, 31 Oct 2017 14:02:32 +0100
From: Peter Zijlstra <peterz@infradead.org>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: syzbot 
        <bot+eec541c6a1e7663177fcb48a5814c0a0776c9f68@syzkaller.appspotmail.com>,
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        Ingo Molnar <mingo@redhat.com>, syzkaller-bugs@googlegroups.com,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: KASAN: use-after-free Read in perf_trace_lock_acquire
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On Tue, Oct 31, 2017 at 02:49:02PM +0300, Dmitry Vyukov wrote:
> Peter, is this dup of "WARNING in get_pi_state"?
> https://groups.google.com/d/msg/syzkaller-bugs/jpui-7LJvUw/b77s8UZiAgAJ

Yep, same race, different outcome.