linux-kernel - Re: KASAN: null-ptr-deref Write in blk_mq_map

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Message-ID: <fa743a2c-f79e-6021-7c2b-72e178f913f4@kernel.dk>
Date:   Fri, 27 Mar 2020 09:06:32 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     syzbot <syzbot+313d95e8a7a49263f88d@...kaller.appspotmail.com>,
        a@...table.cc, b.a.t.m.a.n@...ts.open-mesh.org,
        davem@...emloft.net, dongli.zhang@...cle.com,
        linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, mareklindner@...mailbox.ch,
        netdev@...r.kernel.org, sven@...fation.org, sw@...onwunderlich.de,
        syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk
Subject: Re: KASAN: null-ptr-deref Write in blk_mq_map_swqueue

On 3/26/20 7:28 PM, syzbot wrote:
> syzbot has bisected this bug to:
> 
> commit 768134d4f48109b90f4248feecbeeb7d684e410c
> Author: Jens Axboe <axboe@...nel.dk>
> Date:   Mon Nov 11 03:30:53 2019 +0000
> 
>     io_uring: don't do flush cancel under inflight_lock

This is definitely an utterly bogus bisect, not related at all.

-- 
Jens Axboe