loop0: detected capacity change from 0 to 32768
loop0: detected capacity change from 0 to 32768
bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,compression=lz4,nojournal_transaction_names
bcachefs (loop0): recovering from clean shutdown, journal seq 15
bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.11: disk_accounting_inum
  running recovery passes: check_allocations
bcachefs (loop0): flagging btree snapshots lost data
error reading btree root snapshots l=0: btree_node_read_error, fixing
bcachefs (loop0): will run btree node scan
bcachefs (loop0): scan_for_btree_nodes...
bcachefs (loop0): error starting kthread: 1
bcachefs (loop0): bch2_fs_recovery(): error EPERM
bcachefs (loop0): bch2_fs_start(): error starting filesystem EPERM
bcachefs (loop0): shutting down
bcachefs (loop0): shutdown complete
bcachefs: bch2_fs_get_tree() error: EPERM
Filesystem bcachefs get_tree() didn't set fc->root
------------[ cut here ]------------
kernel BUG at fs/super.c:1810!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5110 Comm: syz.0.0 Not tainted 6.11.0-rc4-syzkaller-00019-gb311c1b497e5 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:vfs_get_tree+0x29c/0x2a0 fs/super.c:1810
Code: ff 49 8b 1f 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 74 95 ee ff 48 8b 33 48 c7 c7 60 93 18 8c e8 b5 82 a7 09 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc9000b647d08 EFLAGS: 00010246
RAX: 0000000000000032 RBX: ffffffff8ef44540 RCX: 5a2666133b1a4c00
RDX: ffffc9000b1b9000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 1ffff110089a0416 R08: ffffffff8174034c R09: 1ffff920016c8f40
R10: dffffc0000000000 R11: fffff520016c8f41 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff888044d020b0 R15: ffff888044d02098
FS:  00007f60052d86c0(0000) GS:ffff888020800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557b4b25f8 CR3: 000000003a292000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_new_mount+0x2be/0xb40 fs/namespace.c:3472
 do_mount fs/namespace.c:3812 [inline]
 __do_sys_mount fs/namespace.c:4020 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f600457b61a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f60052d7e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f60052d7ef0 RCX: 00007f600457b61a
RDX: 00000000200088c0 RSI: 000000002000ff00 RDI: 00007f60052d7eb0
RBP: 00000000200088c0 R08: 00007f60052d7ef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000002000ff00
R13: 00007f60052d7eb0 R14: 000000000000fe88 R15: 0000000020000040
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:vfs_get_tree+0x29c/0x2a0 fs/super.c:1810
Code: ff 49 8b 1f 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 74 95 ee ff 48 8b 33 48 c7 c7 60 93 18 8c e8 b5 82 a7 09 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f
RSP: 0018:ffffc9000b647d08 EFLAGS: 00010246
RAX: 0000000000000032 RBX: ffffffff8ef44540 RCX: 5a2666133b1a4c00
RDX: ffffc9000b1b9000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 1ffff110089a0416 R08: ffffffff8174034c R09: 1ffff920016c8f40
R10: dffffc0000000000 R11: fffff520016c8f41 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff888044d020b0 R15: ffff888044d02098
FS:  00007f60052d86c0(0000) GS:ffff888020800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557b4b25f8 CR3: 000000003a292000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400