------------[ cut here ]------------
WARNING: CPU: 0 PID: 16138 at fs/read_write.c:504 __kernel_write_iter+0x508/0x5f8
Modules linked in:
CPU: 0 PID: 16138 Comm: syz-executor.1 Not tainted 6.1.50-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __kernel_write_iter+0x508/0x5f8
lr : __kernel_write_iter+0x504/0x5f8 fs/read_write.c:504
sp : ffff8000208174c0
x29: ffff8000208175a0 x28: ffff700004102ea0 x27: ffff800020817640
x26: dfff800000000000 x25: fffffffffffffff7 x24: 1fffe0001a24dd4f
x23: ffff0000d126ea7c x22: ffff0000d3c67c08 x21: dfff800000000000
x20: ffff0000d126ea00 x19: 00000000000a801d x18: ffff800020817560
x17: 0000000000000000 x16: ffff80001206cec0 x15: 0000000020000100
x14: 1ffff00002b160b0 x13: dfff800000000000 x12: 0000000000040000
x11: 0000000000002c62 x10: ffff8000234bd000 x9 : ffff800008a37534
x8 : 0000000000002c63 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000011 x3 : 0000000000000001
x2 : ffff0000d3c67c08 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 __kernel_write_iter+0x508/0x5f8
 __kernel_write fs/read_write.c:537 [inline]
 kernel_write+0x1b0/0x2f0 fs/read_write.c:558
 write_buf fs/btrfs/send.c:591 [inline]
 send_header fs/btrfs/send.c:709 [inline]
 send_subvol+0x174/0x3f0c fs/btrfs/send.c:7675
 btrfs_ioctl_send+0x1c40/0x21b4 fs/btrfs/send.c:8041
 _btrfs_ioctl_send+0x314/0x468 fs/btrfs/ioctl.c:5242
 btrfs_ioctl+0x638/0xb08
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 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:581
irq event stamp: 84168
hardirqs last  enabled at (84167): [<ffff80001211cd38>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (84167): [<ffff80001211cd38>] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (84168): [<ffff80001211a924>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (84124): [<ffff80000803308c>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (84122): [<ffff800008033058>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---