UBSAN: shift-out-of-bounds in fs/bcachefs/replicas.c:1010:20 shift exponent 155 is too large for 32-bit type 'int' CPU: 1 PID: 5192 Comm: syz-executor300 Not tainted 6.9.0-rc7-syzkaller-00183-gcf87f46fd34d #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:114 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_shift_out_of_bounds+0x2a5/0x480 lib/ubsan.c:468 bch2_sb_dev_has_data.cold+0x39/0x3e fs/bcachefs/replicas.c:1010 member_to_text+0xb4/0xb20 fs/bcachefs/sb-members.c:163 bch2_sb_members_v1_to_text+0x178/0x230 fs/bcachefs/sb-members.c:317 __bch2_sb_field_to_text+0x123/0x1e0 fs/bcachefs/super-io.c:1245 bch2_sb_field_validate+0x248/0x2d0 fs/bcachefs/super-io.c:1228 bch2_sb_validate.isra.0+0x60e/0xce0 fs/bcachefs/super-io.c:460 __bch2_read_super+0x93c/0x12a0 fs/bcachefs/super-io.c:822 bch2_fs_open+0x3e5/0x1110 fs/bcachefs/super.c:2052 bch2_mount+0xdcc/0x1130 fs/bcachefs/fs.c:1903 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8f/0x380 fs/super.c:1779 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x297/0x320 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fef281168fa Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffb59238f8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fffb5923910 RCX: 00007fef281168fa RDX: 0000000020011a00 RSI: 0000000020011a40 RDI: 00007fffb5923910 RBP: 0000000000000004 R08: 00007fffb5923950 R09: 00000000000119f3 R10: 0000000001200014 R11: 0000000000000282 R12: 0000000001200014 R13: 00007fffb5923950 R14: 0000000000000003 R15: 0000000001000000 ---[ end trace ]---