syz.0.0 (5323)[   58.489637][ T5323] 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,grpquota,nojournal_transaction_names
invalid bkey in superblock btree=xattrs level=1: u64s 11 type btree_ptr_v2 SPOS_MAX len 6029312 ver 0: seq 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0
  size != 0: delete?, fixing
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 1.20: directory_size
  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): error validating btree node on loop0 at btree alloc level 0/0
  u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq ac62141f8dc7e200 written 24 min_key POS_MIN durability: 1 ptr: 0:26:0 gen 0  
  node offset 0/24: got wrong btree node: got
  btree=alloc level=0 seq ac62141f8dc7e261 1
  min: POS_MIN
  max: SPOS_MAX
bcachefs (loop0): running explicit recovery pass check_topology (2), currently at recovery_pass_empty (0)
bcachefs (loop0): flagging btree alloc lost data
error reading btree root btree=alloc level=0: btree_node_read_error, fixing
bcachefs (loop0): error validating btree node on loop0 at btree lru level 0/0
  u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 28f61e078e70b95c written 16 min_key POS_MIN durability: 1 ptr: 0:28:0 gen 0  
  node offset 0/16 bset u64s 0: invalid bkey format: field 2 too large: 4294967295 + 792633534417207296 > 4294967295
    u64s 3 fields 64:0, 64:0, 32:792633534417207296, 0:0, 0:0, 0:0
bcachefs (loop0): flagging btree lru lost data
error reading btree root btree=lru level=0: btree_node_read_error, fixing
------------[ cut here ]------------
kernel BUG at fs/bcachefs/ec.h:34!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-05182-ge0b1f5914274 #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:stripe_csum_offset fs/bcachefs/ec.h:34 [inline]
RIP: 0010:stripe_blockcount_offset fs/bcachefs/ec.h:46 [inline]
RIP: 0010:stripe_val_u64s fs/bcachefs/ec.h:66 [inline]
RIP: 0010:bch2_stripe_validate+0x8f0/0x940 fs/bcachefs/ec.c:123
Code: 38 c1 0f 8c 5f fc ff ff be 18 00 00 00 4c 89 f7 e8 b5 03 d2 fd 48 8d 54 24 60 e9 48 fc ff ff e8 86 d9 a0 07 e8 81 68 6b fd 90 <0f> 0b e8 79 68 6b fd 90 0f 0b 44 89 e9 80 e1 07 38 c1 0f 8c ba fe
RSP: 0018:ffffc9000d416700 EFLAGS: 00010287
RAX: ffffffff843402ff RBX: 00000000000000ff RCX: 0000000000100000
RDX: ffffc9000ed1a000 RSI: 000000000004a3ef RDI: 000000000004a3f0
RBP: ffffc9000d4167f8 R08: ffffffff8433fc79 R09: 1ffff1100a630035
R10: dffffc0000000000 R11: ffffffff8433fa10 R12: dffffc0000000000
R13: 1ffff92001a82ce8 R14: 0000000000000009 R15: ffff888055a00128
FS:  00007f209633f6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559bd3b1f028 CR3: 0000000040fa4000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_bkey_val_validate+0x217/0x400 fs/bcachefs/bkey_methods.c:143
 btree_node_bkey_val_validate fs/bcachefs/btree_io.c:838 [inline]
 bch2_btree_node_read_done+0x3e81/0x5f70 fs/bcachefs/btree_io.c:1253
 btree_node_read_work+0x6dc/0x1380 fs/bcachefs/btree_io.c:1358
 bch2_btree_node_read+0x2433/0x29f0
 __bch2_btree_root_read fs/bcachefs/btree_io.c:1789 [inline]
 bch2_btree_root_read+0x617/0x7a0 fs/bcachefs/btree_io.c:1811
 read_btree_roots+0x3d3/0xa70 fs/bcachefs/recovery.c:582
 bch2_fs_recovery+0x260f/0x3de0 fs/bcachefs/recovery.c:929
 bch2_fs_start+0x37c/0x610 fs/bcachefs/super.c:1030
 bch2_fs_get_tree+0xd8d/0x1740 fs/bcachefs/fs.c:2203
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3560
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088
 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: 0033:0x7f209558e4ca
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:00007f209633ee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f209633eef0 RCX: 00007f209558e4ca
RDX: 00000000200058c0 RSI: 0000000020000000 RDI: 00007f209633eeb0
RBP: 00000000200058c0 R08: 00007f209633eef0 R09: 0000000000010000
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000020000000
R13: 00007f209633eeb0 R14: 00000000000058ff R15: 0000000020000040
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:stripe_csum_offset fs/bcachefs/ec.h:34 [inline]
RIP: 0010:stripe_blockcount_offset fs/bcachefs/ec.h:46 [inline]
RIP: 0010:stripe_val_u64s fs/bcachefs/ec.h:66 [inline]
RIP: 0010:bch2_stripe_validate+0x8f0/0x940 fs/bcachefs/ec.c:123
Code: 38 c1 0f 8c 5f fc ff ff be 18 00 00 00 4c 89 f7 e8 b5 03 d2 fd 48 8d 54 24 60 e9 48 fc ff ff e8 86 d9 a0 07 e8 81 68 6b fd 90 <0f> 0b e8 79 68 6b fd 90 0f 0b 44 89 e9 80 e1 07 38 c1 0f 8c ba fe
RSP: 0018:ffffc9000d416700 EFLAGS: 00010287
RAX: ffffffff843402ff RBX: 00000000000000ff RCX: 0000000000100000
RDX: ffffc9000ed1a000 RSI: 000000000004a3ef RDI: 000000000004a3f0
RBP: ffffc9000d4167f8 R08: ffffffff8433fc79 R09: 1ffff1100a630035
R10: dffffc0000000000 R11: ffffffff8433fa10 R12: dffffc0000000000
R13: 1ffff92001a82ce8 R14: 0000000000000009 R15: ffff888055a00128
FS:  00007f209633f6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559bd3b1f028 CR3: 0000000040fa4000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400