loop0: detected capacity change from 0 to 32768
bcachefs (loop0): mounting version 1.7: (unknown version) opts=metadata_checksum=none,data_checksum=none,nojournal_transaction_names
------------[ cut here ]------------
UBSAN: shift-out-of-bounds in fs/bcachefs/bkey_methods.c:174:2
shift exponent 255 is too large for 64-bit type 'unsigned long long'
CPU: 0 PID: 2376 Comm: syz-executor.0 Not tainted 6.9.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x3e/0xe0 lib/dump_stack.c:114
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_shift_out_of_bounds+0x248/0x270 lib/ubsan.c:454
 __bch2_bkey_invalid+0x1b2/0x220 fs/bcachefs/bkey_methods.c:174
 bch2_bkey_invalid+0x20/0xb0 fs/bcachefs/bkey_methods.c:230
 journal_validate_key+0x252/0x5c0 fs/bcachefs/journal_io.c:344
 journal_entry_btree_root_validate+0x67/0x1a0 fs/bcachefs/journal_io.c:440
 bch2_sb_clean_validate_late fs/bcachefs/sb-clean.c:32 [inline]
 bch2_read_superblock_clean+0x93/0x130 fs/bcachefs/sb-clean.c:160
 bch2_fs_recovery+0x5e/0x16c0 fs/bcachefs/recovery.c:570
 bch2_fs_start+0x1b9/0x270 fs/bcachefs/super.c:1042
 bch2_fs_open+0xd24/0x13c0 fs/bcachefs/super.c:2101
 bch2_mount+0x277/0x5c0 fs/bcachefs/fs.c:1900
 legacy_get_tree+0x2d/0x60 fs/fs_context.c:662
 vfs_get_tree+0x24/0xb0 fs/super.c:1797
 do_new_mount+0x15a/0x3a0 fs/namespace.c:3352
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x14b/0x1c0 fs/namespace.c:3875
 do_syscall_64+0x95/0x1b0
 entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7fbe85c7f3aa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbe86a02ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fbe86a02f80 RCX: 00007fbe85c7f3aa
RDX: 0000000020011a00 RSI: 0000000020011a40 RDI: 00007fbe86a02f40
RBP: 0000000020011a00 R08: 00007fbe86a02f80 R09: 0000000002000002
R10: 0000000002000002 R11: 0000000000000246 R12: 0000000020011a40
R13: 00007fbe86a02f40 R14: 00000000000119f6 R15: 00000000200009c0
 </TASK>
---[ end trace ]---