linux-kernel - Re: [syzbot] BUG: corrupted list in nfc_llcp_register

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Date:   Wed, 21 Dec 2022 07:02:27 -0800
From:   syzbot <syzbot+c1d0a03d305972dbbe14@...kaller.appspotmail.com>
To:     hdanton@...a.com, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] BUG: corrupted list in nfc_llcp_register_device

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: { P5555 } 2640 jiffies s: 2765 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):

Tested on:

commit:         b6bb9676 Merge tag 'm68knommu-for-v6.2' of git://git.k..
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=136b095f880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d3fb546de56fbf8d
dashboard link: https://syzkaller.appspot.com/bug?extid=c1d0a03d305972dbbe14
compiler:       Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=12bab1c8480000