Re: [syzbot] [block?] WARNING in blkdev_put (3)

From: syzbot
Date: Sun Jun 18 2023 - 17:06:37 EST


syzbot has bisected this issue to:

commit 2736e8eeb0ccdc71d1f4256c9c9a28f58cc43307
Author: Christoph Hellwig <hch@xxxxxx>
Date: Thu Jun 8 11:02:43 2023 +0000

block: use the holder as indication for exclusive opens

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1713d65b280000
start commit: f7efed9f38f8 Add linux-next specific files for 20230616
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=1493d65b280000
console output: https://syzkaller.appspot.com/x/log.txt?x=1093d65b280000
kernel config: https://syzkaller.appspot.com/x/.config?x=60b1a32485a77c16
dashboard link: https://syzkaller.appspot.com/bug?extid=04625c80899f4555de39
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1600684b280000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16b484f3280000

Reported-by: syzbot+04625c80899f4555de39@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 2736e8eeb0cc ("block: use the holder as indication for exclusive opens")

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