syzbot

loop0: detected capacity change from 0 to 32768
ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode.
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kernel BUG at fs/ocfs2/aops.c:1180!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4513 Comm: syz.0.32 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : ocfs2_write_cluster fs/ocfs2/aops.c:1180 [inline]
pc : ocfs2_write_cluster_by_desc+0x17e4/0x1810 fs/ocfs2/aops.c:1241
lr : ocfs2_write_cluster fs/ocfs2/aops.c:1180 [inline]
lr : ocfs2_write_cluster_by_desc+0x17e4/0x1810 fs/ocfs2/aops.c:1241
sp : ffff800020e56580
x29: ffff800020e568a0 x28: ffff0000dd35a030 x27: dfff800000000000
x26: ffff0000dd35a028 x25: ffff800020e566c0 x24: ffff0000f20fcfb8
x23: 0000000000000004 x22: 0000000000000000 x21: ffff0000f20fcfe0
x20: 0000000000000000 x19: 0000000000000000 x18: ffff800011abbcc0
x17: ffff8000181f9000 x16: ffff8000082e7b10 x15: 0000000000000000
x14: 00000000fffffffc x13: 1ffff00002a180b1 x12: 0000000000ff0100
x11: ff00800009ce70c4 x10: 0000000000000000 x9 : ffff800009ce70c4
x8 : ffff0000c8948000 x7 : ffff800009d268a4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000082e7c24
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 ocfs2_write_cluster fs/ocfs2/aops.c:1180 [inline]
 ocfs2_write_cluster_by_desc+0x17e4/0x1810 fs/ocfs2/aops.c:1241
 ocfs2_write_begin_nolock+0x28e8/0x3ab4 fs/ocfs2/aops.c:1817
 ocfs2_write_begin+0x1b4/0x30c fs/ocfs2/aops.c:1904
 generic_perform_write+0x230/0x4b0 mm/filemap.c:3846
 __generic_file_write_iter+0x168/0x37c mm/filemap.c:3974
 ocfs2_file_write_iter+0x1300/0x1bf4 fs/ocfs2/file.c:2469
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x530/0x91c fs/read_write.c:861
 vfs_iter_write+0x88/0xac fs/read_write.c:902
 iter_file_splice_write+0x500/0xa18 fs/splice.c:685
 do_splice_from fs/splice.c:763 [inline]
 direct_splice_actor+0xe4/0x134 fs/splice.c:950
 splice_direct_to_actor+0x3b4/0x978 fs/splice.c:896
 do_splice_direct+0x158/0x244 fs/splice.c:1002
 generic_copy_file_range fs/read_write.c:1393 [inline]
 vfs_copy_file_range+0x8f0/0x11ec fs/read_write.c:1539
 __do_sys_copy_file_range fs/read_write.c:1596 [inline]
 __se_sys_copy_file_range fs/read_write.c:1559 [inline]
 __arm64_sys_copy_file_range+0x4f4/0x81c fs/read_write.c:1559
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 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: 52808fe2 9405f5e2 d4210000 979eea9e (d4210000) 
---[ end trace 0000000000000000 ]---