Merge pull request #2323 from alexnguyen91/master

in_syslog - Check message lenght when read from buffer
fluent · Mar 6, 2019 · e6f1f69 · e6f1f69
2 parents 3d27b11 + 3ef2929
commit e6f1f69
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lib/fluent/plugin/in_syslog.rb b/lib/fluent/plugin/in_syslog.rb
@@ -169,6 +169,10 @@ def start_tcp_server
               num = Integer(buffer[pos..idx])
               pos = idx + num
               msg = buffer[idx + 1...pos]
+              if msg.size < num - 1
+                pos = pos - num - num.to_s.size
+                break
+              end
               message_handler(msg, conn)
             end
           else