loop2: detected capacity change from 0 to 2048
EXT4-fs (loop2): mounted filesystem without journal. Quota mode: none.
================================================================================
UBSAN: shift-out-of-bounds in fs/ext4/super.c:2706:15
shift exponent 1953789044 is too large for 32-bit type 'int'
CPU: 0 PID: 363 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x24 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 dump_stack+0x15/0x24 lib/dump_stack.c:113
 ubsan_epilogue+0xe/0x40 lib/ubsan.c:151
 __ubsan_handle_shift_out_of_bounds+0x37c/0x400 lib/ubsan.c:321
 ext4_check_opt_consistency+0x138d/0x1720 fs/ext4/super.c:2706
 ext4_reconfigure+0xca/0x2830 fs/ext4/super.c:6675
 reconfigure_super+0x228/0x8a0 fs/super.c:982
 do_remount fs/namespace.c:2742 [inline]
 path_mount+0xdb5/0xfc0 fs/namespace.c:3403
 do_mount fs/namespace.c:3424 [inline]
 __do_sys_mount fs/namespace.c:3632 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3609
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3609
 x64_sys_call+0x65d/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f8a12b9c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007fff8a8feb38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8a12e15fa0 RCX: 00007f8a12b9c819
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000000
RBP: 00007f8a12c32c91 R08: 0000200000000000 R09: 0000000000000000
R10: 0000000002200020 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8a12e15fac R14: 00007f8a12e15fa0 R15: 00007f8a12e15fa0
 </TASK>
================================================================================
EXT4-fs: test_dummy_encryption requires encrypt feature