EXT4-fs error (device loop4): ext4_mb_generate_buddy:1102: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2748!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 13700 Comm: syz-executor.4 Not tainted 6.1.69-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : ext4_writepages+0x32b0/0x32b4 fs/ext4/inode.c:2747
lr : ext4_writepages+0x32b0/0x32b4 fs/ext4/inode.c:2747
sp : ffff80001f9871c0
x29: ffff80001f987580 x28: ffff800008e57a0c x27: dfff800000000000
x26: ffff000135dd34d8 x25: ffff80001f987800 x24: ffff80001f987480
x23: ffff0000dae46000 x22: ffff80001f9873a0 x21: ffff000135dd3700
x20: 000000d410000000 x19: 0000000000000001 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008302de0 x15: 0000000000000000
x14: 1ffff00002b040b0 x13: dfff800000000000 x12: 0000000033cc694e
x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff800008e5acbc
x8 : ffff0000df0f8000 x7 : ffff800008e57b98 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000001
x2 : 0000000000000000 x1 : 0000008000000000 x0 : 0000000000000000
Call trace:
 ext4_writepages+0x32b0/0x32b4 fs/ext4/inode.c:2747
 do_writepages+0x2e8/0x56c mm/page-writeback.c:2469
 filemap_fdatawrite_wbc+0x124/0x174 mm/filemap.c:388
 __filemap_fdatawrite_range mm/filemap.c:421 [inline]
 __filemap_fdatawrite mm/filemap.c:427 [inline]
 filemap_flush+0x114/0x168 mm/filemap.c:454
 ext4_alloc_da_blocks+0x140/0x3c8 fs/ext4/inode.c:3152
 ext4_release_file+0x68/0x2cc fs/ext4/file.c:158
 __fput+0x30c/0x7bc fs/file_table.c:320
 ____fput+0x20/0x30 fs/file_table.c:348
 task_work_run+0x240/0x2f0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: d4210000 97da7de1 d4210000 97da7ddf (d4210000) 
---[ end trace 0000000000000000 ]---