loop1: detected capacity change from 0 to 40427 F2FS-fs (loop1): Invalid segment/section count (24 != 24 * 3) F2FS-fs (loop1): Can't find valid F2FS filesystem in 1th superblock ================================================================================ UBSAN: shift-out-of-bounds in fs/f2fs/super.c:901:5 shift exponent 174 is too large for 32-bit type 'int' CPU: 0 PID: 871 Comm: syz.1.147 Not tainted 5.15.173-syzkaller-00161-gb4bd207b0380 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x151/0x1c0 lib/dump_stack.c:106 dump_stack+0x15/0x20 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_shift_out_of_bounds+0x3bf/0x420 lib/ubsan.c:321 parse_options+0x460f/0x4620 fs/f2fs/super.c:901 f2fs_fill_super+0x2e83/0x8190 fs/f2fs/super.c:4149 mount_bdev+0x282/0x3b0 fs/super.c:1400 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4618 legacy_get_tree+0xf1/0x190 fs/fs_context.c:611 vfs_get_tree+0x88/0x290 fs/super.c:1530 do_new_mount+0x2ba/0xb30 fs/namespace.c:3012 path_mount+0x671/0x1070 fs/namespace.c:3342 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount+0x2c4/0x3b0 fs/namespace.c:3540 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3540 x64_sys_call+0x49d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f509f5d54ca 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:00007f509dc02e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f509dc02ef0 RCX: 00007f509f5d54ca RDX: 0000000020000180 RSI: 00000000200000c0 RDI: 00007f509dc02eb0 RBP: 0000000020000180 R08: 00007f509dc02ef0 R09: 0000000000000008 R10: 0000000000000008 R11: 0000000000000246 R12: 00000000200000c0 R13: 00007f509dc02eb0 R14: 0000000000005511 R15: 00000000200005c0 ================================================================================ F2FS-fs (loop1): Not support 16384, larger than 256