r0 = syz_io_uring_setup(0x6f10, &(0x7f0000000980), &(0x7f0000ffb000/0x4000)=nil, &(0x7f0000ff9000/0x4000)=nil, &(0x7f0000000a00), &(0x7f0000000a40))
io_uring_register$IORING_UNREGISTER_BUFFERS(r0, 0x1, 0x0, 0x2)