loop1: detected capacity change from 0 to 32768 ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in fs/bcachefs/replicas.c:1012:20 shift exponent 155 is too large for 32-bit type 'int' CPU: 0 PID: 5371 Comm: syz-executor.1 Not tainted 6.9.0-rc7-next-20240510-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x3c8/0x420 lib/ubsan.c:468 bch2_sb_dev_has_data+0x22a/0x5f0 fs/bcachefs/replicas.c:1012 member_to_text+0xbd/0x9b0 fs/bcachefs/sb-members.c:174 bch2_sb_members_v1_to_text+0x1a4/0x2e0 fs/bcachefs/sb-members.c:294 bch2_sb_field_validate+0x201/0x2e0 fs/bcachefs/super-io.c:1234 bch2_sb_validate+0x9a2/0xe00 fs/bcachefs/super-io.c:460 __bch2_read_super+0xc9a/0x1460 fs/bcachefs/super-io.c:822 bch2_fs_open+0x246/0xdf0 fs/bcachefs/super.c:2070 bch2_mount+0x71d/0x1320 fs/bcachefs/fs.c:1917 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 vfs_get_tree+0x90/0x2a0 fs/super.c:1780 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdda3a7f46a 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:00007fdda4755ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fdda4755f80 RCX: 00007fdda3a7f46a RDX: 0000000020011a00 RSI: 0000000020011a40 RDI: 00007fdda4755f40 RBP: 0000000020011a00 R08: 00007fdda4755f80 R09: 0000000001200014 R10: 0000000001200014 R11: 0000000000000202 R12: 0000000020011a40 R13: 00007fdda4755f40 R14: 00000000000119f6 R15: 0000000020000080 ---[ end trace ]---