F2FS-fs (loop8): Can't find valid F2FS filesystem in 1th superblock
F2FS-fs (loop8): Image doesn't support compression
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UBSAN: shift-out-of-bounds in fs/f2fs/super.c:942:5
shift exponent 96 is too large for 64-bit type 'unsigned long'
CPU: 0 PID: 3909 Comm: syz.8.1046 Tainted: G        W          syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 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+0x4aa0/0x4ab0 fs/f2fs/super.c:942
 f2fs_fill_super+0x2318/0x6e20 fs/f2fs/super.c:4399
 mount_bdev+0x2bc/0x3f0 fs/super.c:1448
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4832
 legacy_get_tree+0xfe/0x1a0 fs/fs_context.c:632
 vfs_get_tree+0x9a/0x270 fs/super.c:1578
 do_new_mount+0x251/0xb30 fs/namespace.c:3081
 path_mount+0x659/0xfc0 fs/namespace.c:3411
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdb7a79da0a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdb7b71ae58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fdb7b71aee0 RCX: 00007fdb7a79da0a
RDX: 0000200000000040 RSI: 00002000000000c0 RDI: 00007fdb7b71aea0
RBP: 0000200000000040 R08: 00007fdb7b71aee0 R09: 0000000000800001
R10: 0000000000800001 R11: 0000000000000246 R12: 00002000000000c0
R13: 00007fdb7b71aea0 R14: 0000000000005535 R15: 0000200000000180
 </TASK>
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F2FS-fs (loop8): Not support 4294967296, larger than 256