loop3: detected capacity change from 0 to 40427 ================================================================================ UBSAN: shift-out-of-bounds in fs/f2fs/super.c:934:5 shift exponent 156 is too large for 32-bit type 'int' CPU: 1 PID: 6543 Comm: syz.3.1805 Tainted: G W syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 Call Trace: __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:1400 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:1530 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: 0033:0x7fbecfc4310a 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:00007fbece679e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fbece679ee0 RCX: 00007fbecfc4310a RDX: 0000200000000000 RSI: 0000200000000040 RDI: 00007fbece679ea0 RBP: 0000200000000000 R08: 00007fbece679ee0 R09: 0000000000000008 R10: 0000000000000008 R11: 0000000000000246 R12: 0000200000000040 R13: 00007fbece679ea0 R14: 0000000000005515 R15: 0000200000000200 ================================================================================ F2FS-fs (loop3): Not support 268435456, larger than 256