F2FS-fs (loop0): Invalid log_blocksize (64), supports only 12
F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
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UBSAN: shift-out-of-bounds in fs/f2fs/super.c:934:5
shift exponent 140 is too large for 32-bit type 'int'
CPU: 1 PID: 303 Comm: syz-executor252 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 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+0x364/0x3f0 lib/ubsan.c:321
 parse_options+0x476a/0x4790 fs/f2fs/super.c:935
 f2fs_fill_super+0x1f09/0x6dd0 fs/f2fs/super.c:4247
 mount_bdev+0x28d/0x3c0 fs/super.c:1411
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4713
 legacy_get_tree+0xed/0x190 fs/fs_context.c:611
 vfs_get_tree+0x89/0x260 fs/super.c:1541
 do_new_mount+0x251/0xb40 fs/namespace.c:3037
 path_mount+0x640/0xff0 fs/namespace.c:3367
 do_mount fs/namespace.c:3380 [inline]
 __do_sys_mount fs/namespace.c:3588 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3565
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3565
 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: 0033:0x7f9cdc46979a
Code: 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 f4 32 09 00 00 00 00 00 eb 96 e8 61 05 00 00 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff9202f778 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fff9202f790 RCX: 00007f9cdc46979a
RDX: 0000200000000140 RSI: 0000200000000240 RDI: 00007fff9202f790
RBP: 0000200000000240 R08: 00007fff9202f7d0 R09: 0000000000000000
R10: 0000000001800004 R11: 0000000000000286 R12: 0000200000000140
R13: 00007fff9202f7d0 R14: 0000000000000003 R15: 0000000001800004
 </TASK>
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F2FS-fs (loop0): Not support 4096, larger than 256