Sorry, didn't get the alert when Daniel Fandrich helped me out.

curl 7.21.4 (universal-apple-darwin11.0) libcurl/7.21.4 OpenSSL/0.9.8r zlib/1.2.5
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp smtp smtps telnet tftp
Features: AsynchDNS GSS-Negotiate IPv6 Largefile NTLM SSL libz

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** [bugs:#1179] Buffer Overflow Detection**
**Status:** pending
**Labels:** buffer overflow 
**Created:** Tue Jan 08, 2013 05:26 PM UTC by Joshua Hickman
**Last Updated:** Fri Jan 18, 2013 09:42 PM UTC
**Owner:** Daniel Stenberg
I'm running typheous (which uses libcurl) on JRuby via the FFI. I got this curious stack trace:
*** buffer overflow detected ***: /usr/bin/java terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7f8bdd5b3007]
/lib/x86_64-linux-gnu/libc.so.6(+0x107f00)[0x7f8bdd5b1f00]
/lib/x86_64-linux-gnu/libc.so.6(+0x108fbe)[0x7f8bdd5b2fbe]
/usr/lib/x86_64-linux-gnu/libcurl.so.4(curl_multi_fdset+0xeb)[0x7f8b99b9133b]
Any help you can provide would be phenomenal -- I'm having a hard time reliably reproducing (it took hours on a production box with >100 requests a second to trigger this), but I'll keep this ticket up to date with any further information I have. 
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