Re: [syzbot] KASAN: wild-memory-access Read in io_wq_worker_running

syzbot
2023-01-07T21:50:22Z

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