syzbot has bisected this issue to: commit 275dca4630c165edea9abe27113766bc1173f878 Author: Eric Biggers <ebiggers@xxxxxxxxxx> Date: Wed Dec 27 17:14:28 2023 +0000 f2fs: move release of block devices to after kill_block_super() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16071613e80000 start commit: 70d201a40823 Merge tag 'f2fs-for-6.8-rc1' of git://git.ker.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=15071613e80000 console output: https://syzkaller.appspot.com/x/log.txt?x=11071613e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=4607bc15d1c4bb90 dashboard link: https://syzkaller.appspot.com/bug?extid=8f477ac014ff5b32d81f syz repro: https://syzkaller.appspot.com/x/repro.syz?x=112b660be80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14c1df5de80000 Reported-by: syzbot+8f477ac014ff5b32d81f@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 275dca4630c1 ("f2fs: move release of block devices to after kill_block_super()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection