Re: [syzbot] KASAN: use-after-free Read in jbd2_journal_wait_updates

From: syzbot
Date: Wed Feb 09 2022 - 02:55:20 EST


Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+afa2ca5171d93e44b348@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 54ccc072 jbd2: Remove CONFIG_JBD2_DEBUG to update t_ma..
git tree: https://github.com/riteshharjani/linux.git jbd2-kill-t-handle-lock-t2
kernel config: https://syzkaller.appspot.com/x/.config?x=266de9da75c71a45
dashboard link: https://syzkaller.appspot.com/bug?extid=afa2ca5171d93e44b348
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: testing is done by a robot and is best-effort only.