Pulled the latest 'docker' build from this Bodhi update:

https://bodhi.fedoraproject.org/updates/FEDORA-2017-cbf83e5281


After installing it and starting the daemon, attempting to run a container throws the error in the Summary:

# rpm -q docker
docker-1.13.1-38.git166a52e.fc26.x86_64

# docker run --rm docker.io/busybox echo hello                            
Unable to find image 'docker.io/busybox:latest' locally   
Trying to pull repository docker.io/library/busybox ...
sha256:06d4020f14549289bf9552dccf99c79c61ef8e664aec2edca614f8ae4af7a4ce: Pulling from docker.io/library/busybox
0ffadd58f2a6: Pull complete                          
Digest: sha256:06d4020f14549289bf9552dccf99c79c61ef8e664aec2edca614f8ae4af7a4ce
Status: Downloaded newer image for docker.io/busybox:latest
/usr/bin/docker-current: Error response from daemon: linux seccomp: Decoding seccomp profile failed: unexpected end of JSON input.


An examination of /etc/docker/seccomp.json looks like it is missing a closing curly brace:

# cat /etc/docker/seccomp.json                                                                                                                                                     
{                                                                                                                                                                                                                 
        "defaultAction": "SCMP_ACT_ERRNO",                                                                                                                                                                        
        "archMap": [                                                                                                                                                                                              
                {                                                                                                                                                                                                 
                        "architecture": "SCMP_ARCH_X86_64",                                                                                                                                                       
                        "subArchitectures": [                                                                                                                                                                     
                                "SCMP_ARCH_X86",                                                                                                                                                                  
                                "SCMP_ARCH_X32"                                                                                                                                                                   
                        ]                                                                                                                                                                                         
                }, 

<snip all the text>

                      {                                   
                        "names": [                  
                                "vhangup"           
                        ],                          
                        "action": "SCMP_ACT_ALLOW", 
                        "args": [],                 
                        "comment": "",              
                        "includes": {               
                                "caps": [           
                                        "CAP_SYS_TTY_CONFIG"                                             
                                ]                   
                        },                          
                        "excludes": {}              
                }                                   
        ]                                           
               

Notice how the last character in the file is the closing square bracket.


This was done on a Fedora 26 Cloud system.