Roman Arutyunyan 7570718594 Resolver: fixed possible use-after-free while resolving SRV.
Resolving an SRV record includes resolving its host names in subrequests.
Previously, if memory allocation failed while reporting a subrequest result
after receiving a response from a DNS server, the SRV resolve handler was
called immediately with the NGX_ERROR state.  However, if the SRV record
included another copy of the resolved name, it was reported once again.
This could trigger the use-after-free memory access after SRV resolve
handler freed the resolve context by calling ngx_resolve_name_done().

Now the SRV resolve handler is called only when all its subrequests are
completed.
2017-07-04 18:07:29 +03:00
2015-06-05 22:23:26 +03:00
2017-06-27 17:44:17 +03:00
2017-06-27 17:44:18 +03:00
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