Re: [syzbot] kernel BUG in ext4_mb_use_inode_pa

From: syzbot
Date: Fri Nov 04 2022 - 19:15:34 EST


syzbot suspects this issue was fixed by commit:

commit 4bb26f2885ac6930984ee451b952c5a6042f2c0e
Author: Jan Kara <jack@xxxxxxx>
Date: Wed Jul 27 15:57:53 2022 +0000

ext4: avoid crash when inline data creation follows DIO write

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14eb2fb6880000
start commit: 4fe89d07dcc2 Linux 6.0
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=48b99eaecc2b324f
dashboard link: https://syzkaller.appspot.com/bug?extid=4998f18bcd5fc7e40c8b
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=119bc15c880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13d97bc0880000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: ext4: avoid crash when inline data creation follows DIO write

For information about bisection process see: https://goo.gl/tpsmEJ#bisection