UBSAN: shift-out-of-bounds in fs/ext4/super.c:2493:15
shift exponent 2147876968 is too large for 32-bit type 'int'
CPU: 0 PID: 398 Comm: syz-executor394 Not tainted 5.15.137-syzkaller-01792-g61cfd264993d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
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+0x2084/0x96e0 fs/ext4/super.c:4167
 mount_bdev+0x282/0x3b0 fs/super.c:1387
 ext4_mount+0x34/0x40 fs/ext4/super.c:6581
 legacy_get_tree+0xf1/0x190 fs/fs_context.c:611
 vfs_get_tree+0x88/0x290 fs/super.c:1517
 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: 0033:0x7f57b4a52bca
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 3e 07 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f57b4a06088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f57b4a52bca
RDX: 0000000020000040 RSI: 0000000020000500 RDI: 00007f57b4a060a0
RBP: 00007f57b4a060a0 R08: 00007f57b4a060e0 R09: 00007f57b4a060e0
R10: 0000000000004500 R11: 0000000000000246 R12: 00007f57b4a060e0
R13: 0000000000004500 R14: 0000000000000003 R15: 0000000000040000
 </TASK>
================================================================================
EXT4-fs (loop4): feature flags set on rev 0 fs, running e2fsck is recommended
EXT4-fs (loop4): Magic mismatch, very weird!