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

syzbot
2023-01-09T03:47:24Z

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: { P5561 } 2648 jiffies s: 2797 root: 0x0/T
rcu: blocking rcu_node structures (internal RCU debug):

Tested on:

commit: a4b98579 Merge branch 'io_uring-6.2' into syztest
git tree: git://git.kernel.dk/linux.git syztest
console output: https://syzkaller.appspot.com/x/log.txt?x=17668ed6480000
kernel config: https://syzkaller.appspot.com/x/.config?x=8b79b14037065d92
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

Note: no patches were applied.