linux-kernel - Re: [syzbot] KASAN: wild-memory-access Read in io_wq_worker

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Message-ID: <000000000000fda2c405f1b38462@google.com>
Date:   Sat, 07 Jan 2023 13:50:16 -0800
From:   syzbot <syzbot+d56ec896af3637bdb7e4@...kaller.appspotmail.com>
To:     hdanton@...a.com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] KASAN: wild-memory-access Read in io_wq_worker_running

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
INFO: rcu detected stall in corrupted

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P5521 } 2676 jiffies s: 2809 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):

Tested on:

commit:         9b43a525 Merge tag 'nfs-for-6.2-2' of git://git.linux-..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=13fe4f24480000
kernel config:  https://syzkaller.appspot.com/x/.config?x=ff5cf657dd0e7643
dashboard link: https://syzkaller.appspot.com/bug?extid=d56ec896af3637bdb7e4
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1249e6d6480000