ext4 filesystem being mounted at /root/file1 supports timestamps until 2038-01-19 (0x7fffffff) ================================================================================ UBSAN: shift-out-of-bounds in fs/ext4/super.c:2494:15 shift exponent 1724006178 is too large for 32-bit type 'int' CPU: 1 PID: 295 Comm: syz-executor287 Not tainted 5.15.173-syzkaller-00123-g6f0de8f8a165 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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+0x2c9d/0x2d20 fs/ext4/super.c:2494 ext4_remount+0x8ff/0x2cf0 fs/ext4/super.c:5805 legacy_reconfigure+0xfa/0x110 fs/fs_context.c:634 reconfigure_super+0x436/0x860 fs/super.c:938 do_remount fs/namespace.c:2668 [inline] path_mount+0xcc3/0x1070 fs/namespace.c:3334 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: 0033:0x7f343524e07a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff7fbf3248 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f343524e07a RDX: 0000000020000f40 RSI: 0000000020000f00 RDI: 0000000000000000 RBP: 0000000020000f00 R08: 00007fff7fbf32e0 R09: 0000000000000000 R10: 0000000001a4a438 R11: 0000000000000286 R12: 0000000020000f40 R13: 00007fff7fbf32e0 R14: 0000000000000000 R15: 00000000200008c0 ================================================================================ EXT4-fs (l