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

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Date:   Sat, 26 Sep 2020 07:15:09 -0700
From:   syzbot <syzbot+9af99580130003da82b1@...kaller.appspotmail.com>
To:     axboe@...nel.dk, io-uring@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk
Subject: Re: KASAN: use-after-free Read in io_wqe_worker

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+9af99580130003da82b1@...kaller.appspotmail.com

Tested on:

commit:         41d5f92f io-wq: fix worker refcount race
git tree:       git://git.kernel.dk/linux-block.git
kernel config:  https://syzkaller.appspot.com/x/.config?x=d31db37354c30905
dashboard link: https://syzkaller.appspot.com/bug?extid=9af99580130003da82b1
compiler:       clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)

Note: testing is done by a robot and is best-effort only.