fuse: Unknown parameter 'roo|mo00000000s' 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,fsck,fix_errors=no,norecovery,recovery_pass_last=reconstruct_snapshots,nojournal_transaction_names,reconstruct_alloc bcachefs (loop0): recovering from clean shutdown, journal seq 10 bcachefs (loop0): Doing compatible version upgrade from 1.7: mi_btree_bitmap to 1.20: directory_size running recovery passes: check_allocations,check_extents_to_backpointers,check_inodes invalid btree id 251 (max 63), not fixing bcachefs (loop0): dropping and reconstructing all alloc info bcachefs (loop0): error validating btree node on loop0 at btree xattrs level 0/0 u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 2285c34bed0abe32 written 16 min_key POS_MIN durability: 1 ptr: 0:31:0 gen 0 node offset 0/16 bset u64s 0: incorrect max key U64_MAX:18374686479671623680:50331647 bcachefs (loop0): running explicit recovery pass check_topology (2), currently at recovery_pass_empty (0) bcachefs (loop0): flagging btree xattrs lost data bcachefs (loop0): running explicit recovery pass check_backpointers_to_extents (16), currently at recovery_pass_empty (0) bcachefs (loop0): running explicit recovery pass scan_for_btree_nodes (1), currently at recovery_pass_empty (0) error reading btree root btree=xattrs level=0: btree_node_read_error, fixing ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in fs/bcachefs/btree_cache.c:218:18 shift exponent 251 is too large for 64-bit type 'unsigned long long' CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted 6.14.0-rc6-syzkaller-00212-geb88e6bfbc0a #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 __btree_node_pinned fs/bcachefs/btree_cache.c:218 [inline] __bch2_btree_node_hash_insert+0x1b1d/0x1b80 fs/bcachefs/btree_cache.c:294 bch2_btree_node_hash_insert+0x7e/0xc0 fs/bcachefs/btree_cache.c:309 __bch2_btree_root_read fs/bcachefs/btree_io.c:1783 [inline] bch2_btree_root_read+0x5d5/0x7b0 fs/bcachefs/btree_io.c:1811 read_btree_roots+0x3d3/0xa70 fs/bcachefs/recovery.c:581 bch2_fs_recovery+0x260f/0x3de0 fs/bcachefs/recovery.c:928 bch2_fs_start+0x37c/0x610 fs/bcachefs/super.c:1041 bch2_fs_get_tree+0xdb7/0x17a0 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: 0033:0x7fb71658e90a 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:00007fb717494e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fb717494ef0 RCX: 00007fb71658e90a RDX: 0000400000000180 RSI: 0000400000000540 RDI: 00007fb717494eb0 RBP: 0000400000000180 R08: 00007fb717494ef0 R09: 0000000000800000 R10: 0000000000800000 R11: 0000000000000246 R12: 0000400000000540 R13: 00007fb717494eb0 R14: 000000000000596a R15: 00004000000002c0 </TASK> ---[ end trace ]---