EXT4-fs error (device loop2): ext4_free_branches:1030: inode #11: comm syz.2.17: invalid indirect mapped block 2185560079 (level 1)
EXT4-fs (loop2): Remounting filesystem read-only
EXT4-fs (loop2): 1 truncate cleaned up
EXT4-fs (loop2): mounted filesystem without journal. Opts: errors=remount-ro,noblock_validity,noquota,test_dummy_encryption,data_err=ignore. Quota mode: none.
EXT4-fs (loop2): Ignoring removed mblk_io_submit option
EXT4-fs (loop2): Test dummy encryption mode enabled
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UBSAN: shift-out-of-bounds in fs/ext4/super.c:2493:15
shift exponent 808464432 is too large for 32-bit type 'int'
CPU: 0 PID: 374 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
 <TASK>
 __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+0x37c/0x400 lib/ubsan.c:321
 parse_options+0x23fb/0x2480 fs/ext4/super.c:2493
 ext4_remount+0x5ca/0x26d0 fs/ext4/super.c:5830
 legacy_reconfigure+0xfa/0x110 fs/fs_context.c:634
 reconfigure_super+0x21a/0x890 fs/super.c:938
 do_remount fs/namespace.c:2697 [inline]
 path_mount+0xd24/0xff0 fs/namespace.c:3356
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3562
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3562
 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: 0033:0x7f913261f04a
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:00007ffc44e81e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc44e81f00 RCX: 00007f913261f04a
RDX: 0000200000000180 RSI: 0000200000000000 RDI: 0000000000000000
RBP: 0000200000000180 R08: 00007ffc44e81f00 R09: 0000000001b7a434
R10: 0000000001b7a434 R11: 0000000000000246 R12: 0000200000000000
R13: 00007ffc44e81ec0 R14: 0000000000000000 R15: 00002000000003c0
 </TASK>
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