loop0: detected capacity change from 0 to 32768
bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names
invalid bkey u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ebb8d5a9e3463bdb written 16 min_key 949187772416:0:0 durability: 0 (invalid extent entry 0000000000000000)
  invalid extent entry type (got 6, max 6): deleting
bcachefs (loop0): recovering from clean shutdown, journal seq 10
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
invalid bkey u64s 18 type inode_v3 87:4100:U32_MAX len 0 ver 0: 
  mode=120777
  flags=(15300000)
  journal_seq=4
  bi_size=38
  bi_sectors=8
  bi_version=0
  bi_atime=2770562249
  bi_ctime=2780562352
  bi_mtime=2770562249
  bi_otime=2770562249
  bi_uid=0
  bi_gid=0
  bi_nlink=0
  bi_generation=0
  bi_dev=0
  bi_data_checksum=0
  bi_compression=0
  bi_project=0
  bi_background_compression=0
  bi_data_replicas=0
  bi_promote_target=0
  bi_foreground_target=0
  bi_background_target=0
  bi_erasure_code=0
  bi_fields_set=0
  bi_dir=4098
  bi_dir_offset=5675548428000973578
  bi_subvol=0
  bi_parent_subvol=0
  bi_nocow=0
  nonzero k.p.inode: delete?, fixing
invalid bkey u64s 6 type dirent 4096:4330382808765833931:U32_MAX len 0 ver 0:  -> 536870912 type blk
  bad val size (8 < 16): delete?, fixing
------------[ cut here ]------------
UBSAN: shift-out-of-bounds in fs/bcachefs/alloc_background.h:165:13
shift exponent 108 is too large for 32-bit type 'unsigned int'
CPU: 0 UID: 0 PID: 5104 Comm: syz.0.0 Not tainted 6.12.0-rc3-syzkaller-00454-gdb87114dcf13 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 ubsan_epilogue lib/ubsan.c:231 [inline]
 __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:468
 data_type_movable fs/bcachefs/alloc_background.h:165 [inline]
 alloc_lru_idx_fragmentation fs/bcachefs/alloc_background.h:171 [inline]
 bch2_alloc_to_text+0xc79/0xce0 fs/bcachefs/alloc_background.c:369
 __bch2_bkey_fsck_err+0x1c8/0x280 fs/bcachefs/error.c:454
 bch2_alloc_v4_validate+0x8dd/0xef0 fs/bcachefs/alloc_background.c:265
 bch2_btree_node_read_done+0x3e7e/0x5e90 fs/bcachefs/btree_io.c:1223
 btree_node_read_work+0x68b/0x1260 fs/bcachefs/btree_io.c:1327
 bch2_btree_node_read+0x2433/0x2a10
 __bch2_btree_root_read fs/bcachefs/btree_io.c:1753 [inline]
 bch2_btree_root_read+0x617/0x7a0 fs/bcachefs/btree_io.c:1775
 read_btree_roots+0x296/0x840 fs/bcachefs/recovery.c:524
 bch2_fs_recovery+0x2585/0x39c0 fs/bcachefs/recovery.c:854
 bch2_fs_start+0x356/0x5b0 fs/bcachefs/super.c:1036
 bch2_fs_get_tree+0xd68/0x1710 fs/bcachefs/fs.c:2174
 vfs_get_tree+0x90/0x2b0 fs/super.c:1800
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4055 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032
 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: 0033:0x7fdd6497f79a
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:00007fdd65777e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fdd65777ef0 RCX: 00007fdd6497f79a
RDX: 0000000020000580 RSI: 0000000020005900 RDI: 00007fdd65777eb0
RBP: 0000000020000580 R08: 00007fdd65777ef0 R09: 0000000002000000
R10: 0000000002000000 R11: 0000000000000246 R12: 0000000020005900
R13: 00007fdd65777eb0 R14: 000000000000591b R15: 0000000020000000
 </TASK>
---[ end trace ]---