------------[ cut here ]------------
'send_pkt()' returns 0, but 65536 expected
WARNING: CPU: 1 PID: 4287 at net/vmw_vsock/virtio_transport_common.c:426 virtio_transport_send_pkt_info+0x260/0x3f8 net/vmw_vsock/virtio_transport_common.c:426
Modules linked in:
CPU: 1 UID: 0 PID: 4287 Comm: syz.0.308 Not tainted 6.16.0-syzkaller-12063-g37816488247d #0 PREEMPT 
Hardware name: linux,dummy-virt (DT)
pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : virtio_transport_send_pkt_info+0x260/0x3f8 net/vmw_vsock/virtio_transport_common.c:426
lr : virtio_transport_send_pkt_info+0x260/0x3f8 net/vmw_vsock/virtio_transport_common.c:426
sp : ffff80008a6f38f0
x29: ffff80008a6f38f0 x28: f5f0000006067680 x27: 0000000000000001
x26: f1f000000d6b1f60 x25: 00000000ffffffff x24: faf000000b240a00
x23: 0000000000010000 x22: ffff800082b8a740 x21: f1f000000d6b1f6c
x20: 0000000000010000 x19: ffff80008a6f39b0 x18: 00000000ffffffff
x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000830c39f0
x14: 000000000000023f x13: 0000000000000000 x12: ffff800082911258
x11: 00000000000000c0 x10: 6472c3b4afcaf368 x9 : 889a46ad18774042
x8 : f5f000000a064978 x7 : 0000000000000004 x6 : 0000002ccc6e776d
x5 : 0000000000000002 x4 : fbffff3fffffffff x3 : 000000000000ffff
x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5f000000a063780
Call trace:
 virtio_transport_send_pkt_info+0x260/0x3f8 net/vmw_vsock/virtio_transport_common.c:426 (P)
 virtio_transport_stream_enqueue net/vmw_vsock/virtio_transport_common.c:1111 [inline]
 virtio_transport_seqpacket_enqueue+0x80/0xc0 net/vmw_vsock/virtio_transport_common.c:839
 vsock_connectible_sendmsg+0x35c/0x3a4 net/vmw_vsock/af_vsock.c:2140
 sock_sendmsg_nosec net/socket.c:714 [inline]
 __sock_sendmsg+0x54/0x60 net/socket.c:729
 ____sys_sendmsg+0x190/0x29c net/socket.c:2614
 ___sys_sendmsg+0xac/0x100 net/socket.c:2668
 __sys_sendmmsg+0x104/0x258 net/socket.c:2757
 __do_sys_sendmmsg net/socket.c:2784 [inline]
 __se_sys_sendmmsg net/socket.c:2781 [inline]
 __arm64_sys_sendmmsg+0x28/0x38 net/socket.c:2781
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x48/0x110 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:151
 el0_svc+0x34/0x10c arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:596
---[ end trace 0000000000000000 ]---