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  1. WildFly Elytron
  2. ELY-743

Coverity static analysis: Dereference null return value in ServerAuthenticationContext (Elytron)

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • 1.1.0.Beta16
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      Coverity static-analysis scan found 3 possible calls on null objects in ServerAuthenticationContext class.

      https://scan7.coverity.com/reports.htm#v16159/p11778/fileInstanceId=5760324&defectInstanceId=1541382&mergedDefectId=1369286

      In {​{ServerAuthenticationContext.AuthorizedState.​isSamePrincipal(Principal)}} - Return value of function which returns null is dereferenced without checking.

      2039    boolean isSamePrincipal(final Principal principal) {
          
      // 1. returned_null: getName returns null (checked 9 out of 11 times). (The virtual call resolves to org.wildfly.security.auth.server.PrincipalDecoder.<clinit>/<gen>org.wildfly.security.auth.server.PrincipalDecoder_instance_2.getName.) [show details]
          
      // 2. var_assigned: Assigning: name = null return value from getName.
      2040        String name = authorizedIdentity.getSecurityDomain().getPrincipalDecoder().getName(principal);
          
      // CID 1369286 (#1 of 1): Dereference null return value (NULL_RETURNS)3. dereference: Dereferencing a pointer that might be null name when calling isSameName. [show details]
      2041        return isSameName(name);
      2042    }
      

      https://scan7.coverity.com/reports.htm#v16159/p11778/fileInstanceId=5760324&defectInstanceId=1541377&mergedDefectId=1369289
      In {{ServerAuthenticationContext.NameAssignedState.​isSamePrincipal(Principal)}} - the same as the previous one.

      https://scan7.coverity.com/reports.htm#v16159/p11778/fileInstanceId=5760324&defectInstanceId=1541378&mergedDefectId=1369304
      In {{​ServerAuthenticationContext.ANONYMOUS.​handleOne(​Callback[], int)}}

      790    final PasswordCallback passwordCallback = (PasswordCallback) callback;
      791
         
      // 8. returned_null: getCredentialAcquireSupport returns null (checked 0 out of 1 times). [show details]
         
      // CID 1369304 (#1 of 1): Dereference null return value (NULL_RETURNS)9. null_method_call: Calling a method on null object getCredentialAcquireSupport(org.wildfly.security.credential.PasswordCredential.class).
      792    if (getCredentialAcquireSupport(PasswordCredential.class).mayBeSupported()) {
      

      Suggested improvement
      Add null checks.

            rhn-support-ivassile Ilia Vassilev
            josef.cacek@gmail.com Josef Cacek (Inactive)
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              Created:
              Updated:
              Resolved: