F2FS-fs (loop1): Wrong NAT boundary, start(2560) end(184552960) blocks(1024)
F2FS-fs (loop1): Can't find valid F2FS filesystem in 2th superblock
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UBSAN: shift-out-of-bounds in fs/f2fs/super.c:934:5
shift exponent 112 is too large for 32-bit type 'int'
CPU: 0 PID: 1916 Comm: syz.1.431 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
 dump_stack+0x15/0x20 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+0x47f1/0x4820 fs/f2fs/super.c:934
 f2fs_fill_super+0x1f9d/0x6d10 fs/f2fs/super.c:4236
 mount_bdev+0x2ae/0x3e0 fs/super.c:1400
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4705
 legacy_get_tree+0xed/0x190 fs/fs_context.c:611
 vfs_get_tree+0x89/0x260 fs/super.c:1530
 do_new_mount+0x25a/0xa20 fs/namespace.c:3025
 path_mount+0x675/0x1020 fs/namespace.c:3355
 do_mount fs/namespace.c:3368 [inline]
 __do_sys_mount fs/namespace.c:3576 [inline]
 __se_sys_mount+0x318/0x380 fs/namespace.c:3553
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3553
 x64_sys_call+0x6bf/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa0a8df566a
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:00007fa0a785be68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fa0a785bef0 RCX: 00007fa0a8df566a
RDX: 0000200000000100 RSI: 0000200000010600 RDI: 00007fa0a785beb0
RBP: 0000200000000100 R08: 00007fa0a785bef0 R09: 0000000000000082
R10: 0000000000000082 R11: 0000000000000246 R12: 0000200000010600
R13: 00007fa0a785beb0 R14: 00000000000105cf R15: 0000200000000740
 </TASK>
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F2FS-fs (loop1): Not support 65536, larger than 256