Problem Description:
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A symptom is observed when only one PASV request is successful if vsftpd Server receives multiple requests in a very short period.
Analysis suspects the port number randomly generated by the "gettimeofday" returns the same port number and causing the second port for listening fails.
Steps to Reproduce:
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1. Adjust the command path as needed in bftp.c
2. Start multiple client sessions.
( you can start with 3 clients )
3. Then in the syslog, the error is reported.
# The errorno = 98 is reported in listen error.
# The result of vsf_sysutil_get_random_byte is the
same when the error occurs.
Fix Description:
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The attached source patch should fix the problem. IDENTIFIER = WIND00102563
Installation Instructions:
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1. Copy the patch zip file to your /updates directory
2. Unzip the patch file
3. Go to your /updates/ directory
4. Run setup_linux and install the patch
5. This is a source patch so you will have to rebuild get the patch applied.
