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

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Message-ID: <0000000000001539e805f10b5a78@google.com>
Date:   Fri, 30 Dec 2022 05:12:21 -0800
From:   syzbot <syzbot+81232c4a81a886e2b580@...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_unregister_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: { P5544 } 2636 jiffies s: 2861 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):

Tested on:

commit:         2258c2dc Merge tag 'for-linus' of git://git.kernel.org..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=13a33938480000
kernel config:  https://syzkaller.appspot.com/x/.config?x=555d27e379d75ff1
dashboard link: https://syzkaller.appspot.com/bug?extid=81232c4a81a886e2b580
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=1341acbc480000