linux-kernel - Re: [syzbot] BUG: unable to handle kernel NULL pointer dereference in io_do

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Message-ID: <0000000000001a0dba05df39c7d3@google.com>
Date:   Tue, 17 May 2022 12:02:10 -0700
From:   syzbot <syzbot+1a0a53300ce782f8b3ad@...kaller.appspotmail.com>
To:     asml.silence@...il.com, axboe@...nel.dk, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] BUG: unable to handle kernel NULL pointer dereference in io_do_iopoll

Hello,

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

Reported-and-tested-by: syzbot+1a0a53300ce782f8b3ad@...kaller.appspotmail.com

Tested on:

commit:         aa184e86 io_uring: don't attempt to IOPOLL for MSG_RIN..
git tree:       git://git.kernel.dk/linux-block io_uring-5.18
kernel config:  https://syzkaller.appspot.com/x/.config?x=e408a5da421f07d4
dashboard link: https://syzkaller.appspot.com/bug?extid=1a0a53300ce782f8b3ad
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.