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https://issues.apache.org/jira/browse/THRIFT-5322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Juraci Paixão Kröhling updated THRIFT-5322:
-------------------------------------------
    Description: 
I don't yet know all the pieces to this puzzle, and it's quite possible that 
the problem is on our side, but we use the Thrift Go library in the Jaeger 
Agent and we are seeing a case where the memory consumption for a payload of 4k 
bytes to result in a buffer allocation in the compact_protocol.go with 
unreasonable sizes. I found buffers of 1.4GiB while debugging the issue.

 

This is the code that we are seeing this memory usage:

[https://github.com/apache/thrift/blob/b75e88a33d67ae05ef9b5fa001d2a63a2effe377/lib/go/thrift/compact_protocol.go#L556-L577]

 

Here's more information about this, including a reproducer and initial 
diagnostics:

[https://github.com/jaegertracing/jaeger/issues/2638#issuecomment-741848201]

 

As mentioned above, I'm still getting all the pieces together, but perhaps 
you've seen this before or know what might be going on. What I know for sure at 
the moment is that this happens on malformed payloads, but I would expect the 
library to have an upper limit on the buffer size.

  was:
I don't yet know all the pieces to this puzzle, and it's quite possible that 
the problem is on our side, but we use the Thrift Go library in the Jaeger 
Agent and we are seeing a case where the memory consumption for a payload of 4k 
bytes to result in a buffer allocation in the compact_protocol.go with 
unreasonable sizes. I found buffers of 1.4GiB while debugging the issue.

 

This is the code that we are seeing this memory usage:

[https://github.com/apache/thrift/blob/b75e88a33d67ae05ef9b5fa001d2a63a2effe377/lib/go/thrift/compact_protocol.go#L556-L577]

 

Here's more information about this, including a reproducer and initial 
diagnostics:

[https://github.com/jaegertracing/jaeger/issues/2638#issuecomment-741848201]

 

As mentioned above, I'm still getting all the pieces together, but perhaps 
you've seen this before or know what might be going on.


> Go compact_protocol allocating unreasonable buffer size
> -------------------------------------------------------
>
>                 Key: THRIFT-5322
>                 URL: https://issues.apache.org/jira/browse/THRIFT-5322
>             Project: Thrift
>          Issue Type: Bug
>          Components: Go - Library
>    Affects Versions: 0.13.0
>            Reporter: Juraci Paixão Kröhling
>            Priority: Major
>
> I don't yet know all the pieces to this puzzle, and it's quite possible that 
> the problem is on our side, but we use the Thrift Go library in the Jaeger 
> Agent and we are seeing a case where the memory consumption for a payload of 
> 4k bytes to result in a buffer allocation in the compact_protocol.go with 
> unreasonable sizes. I found buffers of 1.4GiB while debugging the issue.
>  
> This is the code that we are seeing this memory usage:
> [https://github.com/apache/thrift/blob/b75e88a33d67ae05ef9b5fa001d2a63a2effe377/lib/go/thrift/compact_protocol.go#L556-L577]
>  
> Here's more information about this, including a reproducer and initial 
> diagnostics:
> [https://github.com/jaegertracing/jaeger/issues/2638#issuecomment-741848201]
>  
> As mentioned above, I'm still getting all the pieces together, but perhaps 
> you've seen this before or know what might be going on. What I know for sure 
> at the moment is that this happens on malformed payloads, but I would expect 
> the library to have an upper limit on the buffer size.



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