linux-kernel - Re: KASAN: use-after-free Read in perf_trace_lock

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Message-ID: <20171031130232.6jczmdo5k7hhr3oc@hirez.programming.kicks-ass.net>
Date:   Tue, 31 Oct 2017 14:02:32 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     syzbot 
        <bot+eec541c6a1e7663177fcb48a5814c0a0776c9f68@...kaller.appspotmail.com>,
        dvhart@...radead.org, LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...hat.com>,
        syzkaller-bugs@...glegroups.com,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: KASAN: use-after-free Read in perf_trace_lock_acquire

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.