loop0: detected capacity change from 0 to 32768 bcachefs (/dev/loop0): error reading default superblock: checksum error, type none: got should be bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names invalid journal entry, version=1.7: mi_btree_bitmap type=data_usage in superblock: invalid journal entry usage: invalid device 2 in entry btree: 1/1 [2], fixing bcachefs (loop0): recovering from clean shutdown, journal seq 10 bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.13: inode_has_child_snapshots running recovery passes: check_allocations,check_inodes ------------[ cut here ]------------ kernel BUG at fs/bcachefs/extents.h:62! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted 6.12.0-rc5-syzkaller-00181-g6c52d4da1c74 #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:extent_entry_type fs/bcachefs/extents.h:62 [inline] RIP: 0010:bch2_ptr_swab+0x4f6/0x510 fs/bcachefs/extents.c:1313 Code: 80 40 cf fd e9 ae fb ff ff 44 89 f1 80 e1 07 38 c1 0f 8c 5f fc ff ff 4c 89 f7 e8 65 40 cf fd e9 52 fc ff ff e8 2b 82 65 fd 90 <0f> 0b e8 23 82 65 fd 90 0f 0b e8 1b 82 65 fd 90 0f 0b 0f 1f 84 00 RSP: 0018:ffffc9000d0064a0 EFLAGS: 00010283 RAX: ffffffff842f57f5 RBX: 0000000000000024 RCX: 0000000000040000 RDX: ffffc9000d919000 RSI: 000000000002f43d RDI: 000000000002f43e RBP: 1e0e005000000000 R08: ffffffff842f54e3 R09: ffffffff842f534e R10: 0000000000000005 R11: ffff888000690000 R12: dffffc0000000000 R13: ffff888051e81050 R14: ffff888051e81060 R15: 1ffff1100a3d020a FS: 00007f12e2b4c6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e9fe69e000 CR3: 000000004420c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bch2_bkey_swab_val fs/bcachefs/bkey_methods.c:323 [inline] __bch2_bkey_compat+0x4a2/0xfe0 fs/bcachefs/bkey_methods.c:469 bch2_bkey_compat fs/bcachefs/bkey_methods.h:133 [inline] validate_bset_keys+0x617/0x1610 fs/bcachefs/btree_io.c:908 bch2_btree_node_read_done+0x2402/0x5e90 fs/bcachefs/btree_io.c:1134 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:2170 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: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: 0033:0x7f12e1d7feba 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:00007f12e2b4be68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f12e2b4bef0 RCX: 00007f12e1d7feba RDX: 00000000200058c0 RSI: 0000000020005900 RDI: 00007f12e2b4beb0 RBP: 00000000200058c0 R08: 00007f12e2b4bef0 R09: 0000000001000000 R10: 0000000001000000 R11: 0000000000000246 R12: 0000000020005900 R13: 00007f12e2b4beb0 R14: 0000000000005979 R15: 0000000020000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:extent_entry_type fs/bcachefs/extents.h:62 [inline] RIP: 0010:bch2_ptr_swab+0x4f6/0x510 fs/bcachefs/extents.c:1313 Code: 80 40 cf fd e9 ae fb ff ff 44 89 f1 80 e1 07 38 c1 0f 8c 5f fc ff ff 4c 89 f7 e8 65 40 cf fd e9 52 fc ff ff e8 2b 82 65 fd 90 <0f> 0b e8 23 82 65 fd 90 0f 0b e8 1b 82 65 fd 90 0f 0b 0f 1f 84 00 RSP: 0018:ffffc9000d0064a0 EFLAGS: 00010283 RAX: ffffffff842f57f5 RBX: 0000000000000024 RCX: 0000000000040000 RDX: ffffc9000d919000 RSI: 000000000002f43d RDI: 000000000002f43e RBP: 1e0e005000000000 R08: ffffffff842f54e3 R09: ffffffff842f534e R10: 0000000000000005 R11: ffff888000690000 R12: dffffc0000000000 R13: ffff888051e81050 R14: ffff888051e81060 R15: 1ffff1100a3d020a FS: 00007f12e2b4c6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e9fe69e000 CR3: 000000004420c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400