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=0
  bi_dir_offset=0
  bi_subvol=1
  bi_parent_subvol=0
  bi_nocow=0
  flagged as unlinked but bi_nlink != 0: deleting
invalid bkey u64s 18 type inode_v3 0:1073741826:U32_MAX len 0 ver 0: (unpack error)
  invalid variable length fields: delete?, fixing
invalid bkey u64s 16 type inode_v3 10817646304943931392:4096:U32_MAX len 0 ver 0: 
  mode=40755
  flags=(16300000)
  journal_seq=127409912506809
  hash_seed=dac3eba8a0a13bf8
  hash_type=siphash
  bi_size=0
  bi_sectors=0
  bi_version=0
  bi_atime=207774884
  bi_ctime=207774884
  bi_mtime=207774884
  bi_otime=207774884
  bi_uid=0
  bi_gid=0
  bi_nlink=1
  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=0
  bi_dir_offset=0
  bi_subvol=1
  bi_parent_subvol=0
  bi_nocow=0
  nonzero k.p.inode: delete?, fixing
bcachefs (loop0): btree_node_read_work: rewriting btree node at btree=inodes level=0 SPOS_MAX due to error
==================================================================
BUG: KASAN: use-after-free in poly1305_update_arch+0x259/0x7d0 arch/x86/crypto/poly1305_glue.c:198
Read of size 8 at addr ffff888052be4850 by task syz.0.0/5316

CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #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
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:489
 kasan_report+0x143/0x180 mm/kasan/report.c:602
 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189
 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105
 poly1305_update_arch+0x259/0x7d0 arch/x86/crypto/poly1305_glue.c:198
 crypto_poly1305_update+0x28/0x40 arch/x86/crypto/poly1305_glue.c:230
 bch2_checksum+0x5e9/0x770 fs/bcachefs/checksum.c:238
 bch2_btree_node_read_done+0x134c/0x5e90 fs/bcachefs/btree_io.c:1097
 btree_node_read_work+0x68b/0x1260 fs/bcachefs/btree_io.c:1323
 bch2_btree_node_read+0x2433/0x29f0
 __bch2_btree_root_read fs/bcachefs/btree_io.c:1749 [inline]
 bch2_btree_root_read+0x617/0x7a0 fs/bcachefs/btree_io.c:1771
 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: 0033:0x7f94335874ca
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:00007f9434383e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9434383ef0 RCX: 00007f94335874ca
RDX: 0000000020000040 RSI: 000000002000f680 RDI: 00007f9434383eb0
RBP: 0000000020000040 R08: 00007f9434383ef0 R09: 0000000002000000
R10: 0000000002000000 R11: 0000000000000246 R12: 000000002000f680
R13: 00007f9434383eb0 R14: 000000000000f62c R15: 00000000200000c0
 </TASK>

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x52be4
flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff00000000000 ffffea00014af988 ffffea00014af888 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner info is not present (never set?)

Memory state around the buggy address:
 ffff888052be4700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888052be4780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff888052be4800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                 ^
 ffff888052be4880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888052be4900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================