loop0: detected capacity change from 0 to 32768
bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,fix_errors=ask,norecovery,nojournal_transaction_names,noexcl,reconstruct_alloc,nocow,no_data_io
bcachefs (loop0): recovering from clean shutdown, journal seq 3338
bcachefs (loop0): Version upgrade required:
Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots
  running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
bcachefs (loop0): dropping and reconstructing all alloc info
bcachefs (loop0): error validating btree node on loop0 at btree inodes level 0/0
  u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 7589ab5e0c11cc7a written 24 min_key POS_MIN durability: 1 ptr: 0:38:0 gen 0  
  node offset 0/24 bset u64s 0: incorrect max key 18446462598732840960:14872293344460931071:U32_MAX
bcachefs (loop0): flagging btree inodes lost data
error reading btree root inodes l=0: btree_node_read_error, fixing
bcachefs (loop0): will run btree node scan
invalid bkey u64s 7 type xattr 536870912:3798421620223919902:U32_MAX len 0 ver 0: user.:
  xattr name has invalid characters: delete?, fixing
------------[ cut here ]------------
kernel BUG at fs/bcachefs/btree_io.c:1743!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted 6.12.0-syzkaller-03657-g43fb83c17ba2 #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:__bch2_btree_root_read fs/bcachefs/btree_io.c:1743 [inline]
RIP: 0010:bch2_btree_root_read+0x78d/0x7a0 fs/bcachefs/btree_io.c:1771
Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c 98 fa ff ff 4c 89 f7 e8 b6 87 e6 fd e9 8b fa ff ff e8 6c 73 7c fd 90 0f 0b e8 64 73 7c fd 90 <0f> 0b e8 ec ab b2 07 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90
RSP: 0018:ffffc9000d1873a0 EFLAGS: 00010283
RAX: ffffffff8418856c RBX: 00000000ffffffef RCX: 0000000000100000
RDX: ffffc9000e69a000 RSI: 0000000000038e89 RDI: 0000000000038e8a
RBP: ffffc9000d1874e0 R08: ffffffff841883b1 R09: 1ffff92001a30e5c
R10: dffffc0000000000 R11: fffff52001a30e5d R12: ffff888052f1e800
R13: 0000000000023001 R14: ffff888052e01a80 R15: 0000000000000000
FS:  00007f5ac81fe6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffebe254f9c CR3: 000000003ffce000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 read_btree_roots+0x296/0x840 fs/bcachefs/recovery.c:523
 bch2_fs_recovery+0x2585/0x39d0 fs/bcachefs/recovery.c:853
 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1037
 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2170
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
 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: 0033:0x7f5ac877ffba
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:00007f5ac81fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f5ac81fdef0 RCX: 00007f5ac877ffba
RDX: 00000000200058c0 RSI: 0000000020000000 RDI: 00007f5ac81fdeb0
RBP: 00000000200058c0 R08: 00007f5ac81fdef0 R09: 0000000000210008
R10: 0000000000210008 R11: 0000000000000246 R12: 0000000020000000
R13: 00007f5ac81fdeb0 R14: 000000000000597d R15: 0000000020000140
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__bch2_btree_root_read fs/bcachefs/btree_io.c:1743 [inline]
RIP: 0010:bch2_btree_root_read+0x78d/0x7a0 fs/bcachefs/btree_io.c:1771
Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c 98 fa ff ff 4c 89 f7 e8 b6 87 e6 fd e9 8b fa ff ff e8 6c 73 7c fd 90 0f 0b e8 64 73 7c fd 90 <0f> 0b e8 ec ab b2 07 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90
RSP: 0018:ffffc9000d1873a0 EFLAGS: 00010283
RAX: ffffffff8418856c RBX: 00000000ffffffef RCX: 0000000000100000
RDX: ffffc9000e69a000 RSI: 0000000000038e89 RDI: 0000000000038e8a
RBP: ffffc9000d1874e0 R08: ffffffff841883b1 R09: 1ffff92001a30e5c
R10: dffffc0000000000 R11: fffff52001a30e5d R12: ffff888052f1e800
R13: 0000000000023001 R14: ffff888052e01a80 R15: 0000000000000000
FS:  00007f5ac81fe6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005629d375e008 CR3: 000000003ffce000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400