================================================================================
UBSAN: shift-out-of-bounds in fs/ext4/super.c:2493:15
shift exponent 1919383155 is too large for 32-bit type 'int'
CPU: 0 PID: 343 Comm: syz-executor252 Not tainted 5.15.118-syzkaller-01748-g241da2ad5601 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 dump_stack+0x15/0x17 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:2493
 ext4_fill_super+0x2090/0x9680 fs/ext4/super.c:4167
 mount_bdev+0x282/0x3b0 fs/super.c:1378
 ext4_mount+0x34/0x40 fs/ext4/super.c:6578
 legacy_get_tree+0xf1/0x190 fs/fs_context.c:610
 vfs_get_tree+0x88/0x290 fs/super.c:1508
 do_new_mount+0x28b/0xad0 fs/namespace.c:2994
 path_mount+0x671/0x1070 fs/namespace.c:3324
 do_mount fs/namespace.c:3337 [inline]
 __do_sys_mount fs/namespace.c:3545 [inline]
 __se_sys_mount+0x2c4/0x3b0 fs/namespace.c:3522
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3522
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f35deb73caa
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 a8 00 00 00 0f 1f 84 00 00 00 00 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:00007f35deb1e168 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f35deb73caa
RDX: 0000000020000040 RSI: 0000000020000500 RDI: 00007f35deb1e180
RBP: 0000000000000005 R08: 00007f35deb1e1c0 R09: 00007f35deb1e1f0
R10: 0000000000004500 R11: 0000000000000202 R12: 00007f35deb1e6b8
R13: 00007f35deb1e180 R14: 00007f35deb1e1c0 R15: 0000000000004500
 </TASK>
================================================================================
EXT4-fs (loop1): Magic mismatch, very weird!