loop7: detected capacity change from 0 to 40427
F2FS-fs (loop7): Insane cp_payload (553648128 >= 504)
F2FS-fs (loop7): Can't find valid F2FS filesystem in 1th superblock
================================================================================
UBSAN: shift-out-of-bounds in fs/f2fs/super.c:919:5
shift exponent 76 is too large for 64-bit type 'unsigned long'
CPU: 1 PID: 4511 Comm: syz.7.1100 Not tainted 6.1.134-syzkaller-00012-g646380b087a5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 ubsan_epilogue+0xe/0x40 lib/ubsan.c:151
 __ubsan_handle_shift_out_of_bounds+0x37c/0x400 lib/ubsan.c:321
 parse_options+0x4829/0x4830 fs/f2fs/super.c:919
 f2fs_fill_super+0x2281/0x6c70 fs/f2fs/super.c:4307
 mount_bdev+0x2bc/0x3f0 fs/super.c:1445
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4743
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1575
 do_new_mount+0x25a/0xa20 fs/namespace.c:3056
 path_mount+0x675/0x1010 fs/namespace.c:3386
 do_mount fs/namespace.c:3399 [inline]
 __do_sys_mount fs/namespace.c:3607 [inline]
 __se_sys_mount+0x318/0x380 fs/namespace.c:3584
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3584
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f22ac59010a
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:00007f22ad475e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f22ad475ef0 RCX: 00007f22ac59010a
RDX: 0000200000000040 RSI: 00002000000000c0 RDI: 00007f22ad475eb0
RBP: 0000200000000040 R08: 00007f22ad475ef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000000c0
R13: 00007f22ad475eb0 R14: 0000000000005548 R15: 0000200000000380
 </TASK>
================================================================================
F2FS-fs (loop7): Not support 4096, larger than 256