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author | Jakub Hrozek <jhrozek@redhat.com> | 2012-09-12 19:23:48 +0200 |
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committer | Jakub Hrozek <jhrozek@redhat.com> | 2012-10-03 13:44:13 +0200 |
commit | 052684f1ab1c8a4fcfb2c9057c33273acbaf660e (patch) | |
tree | 9cbb6c5004e16f90188b5495204b2ce0773453ab /README | |
parent | b196e1e91ec04ca5af93bfd2dcfc5225f4858a54 (diff) | |
download | sssd-052684f1ab1c8a4fcfb2c9057c33273acbaf660e.tar.gz sssd-052684f1ab1c8a4fcfb2c9057c33273acbaf660e.tar.xz sssd-052684f1ab1c8a4fcfb2c9057c33273acbaf660e.zip |
FO: Check server validity before setting statussssd-1_8_5
The list of resolved servers is allocated on the back end context and
kept in the fo_service structure. However, a single request often
resolves a server and keeps a pointer until the end of a request and
only then gives feedback about the server based on the request result.
This presents a big race condition in case the SRV resolution is used.
When there are requests coming in in parallel, it is possible that an
incoming request will invalidate a server until another request that
holds a pointer to the original server is able to give a feedback.
This patch simply checks if a server is in the list of servers
maintained by a service before reading its status.
https://fedorahosted.org/sssd/ticket/1364
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