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https://issues.apache.org/jira/browse/TS-3438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14490421#comment-14490421
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ASF subversion and git services commented on TS-3438:
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Commit a23a03d5b00582b8c039030d1dfa1544c83e2142 in trafficserver's branch
refs/heads/master from [~sudheerv]
[ https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;h=a23a03d ]
[TS-3438]: Move the assert to the correct place, before the length is
incremented
> npn list being created with garbage data
> ----------------------------------------
>
> Key: TS-3438
> URL: https://issues.apache.org/jira/browse/TS-3438
> Project: Traffic Server
> Issue Type: Bug
> Components: SSL
> Affects Versions: 5.3.0
> Reporter: Sudheer Vinukonda
> Assignee: Sudheer Vinukonda
> Fix For: 6.0.0
>
>
> We noticed that occasionally upon a restart, the npn list built by ATS has
> garbage data (additional null bytes), resulting in the client failing to
> decode the ServerHello correctly. The problem would always go away with a
> restart and is hard to reproduce.
> Here's a trace that shows the good vs bad npn lists in the ServerHello:
> bad npn list (with spdy and http enabled):
> {code}
> Extension: next_protocol_negotiation
> Type: next_protocol_negotiation (0x3374)
> Length: 36
> Next Protocol Negotiation
> Protocol string length: 8
> Next Protocol: spdy/3.1
> Protocol string length: 6
> Next Protocol: spdy/3
> Protocol string length: 8
> Next Protocol: http/1.1
> Protocol string length: 8
> Next Protocol: http/1.0
> Protocol string length: 0
> Protocol string length: 0
> {code}
> good npn list:
> {code}
> Extension: next_protocol_negotiation
> Type: next_protocol_negotiation (0x3374)
> Length: 34
> Next Protocol Negotiation
> Protocol string length: 8
> Next Protocol: spdy/3.1
> Protocol string length: 6
> Next Protocol: spdy/3
> Protocol string length: 8
> Next Protocol: http/1.1
> Protocol string length: 8
> Next Protocol: http/1.0
> {code}
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