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Zdenek Kotala wrote:
>
> I attach patch which adds boundaries check and memory overwriting
> protection when compressed data are corrupted.
>
> Current behavior let code overwrite a memory and after that check if
> unpacked size is same as expected value. In this case elog execution
> fails (at least on Solaris - malloc has corrupted structures) and no
> message appears in a log file.
>
> I did not add any extra information into the message. Reasonable
> solution seems to be use errcontext how was recommended by Alvaro. But I
> 'm not sure if printtup is good place for it, because pg_detoast is
> called from many places. However, is can be solved in separate patch.
>
> I'm also think that this modification should be backported to other
> version too.
>
> Thanks Zdenek
>
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Bruce Momjian <[EMAIL PROTECTED]> http://momjian.us
EnterpriseDB http://postgres.enterprisedb.com
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