view src/core/ngx_murmurhash.h @ 7048:80224192163c

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.
author Roman Arutyunyan <arut@nginx.com>
date Tue, 04 Jul 2017 18:07:29 +0300
parents 709d7d24239d
children
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_MURMURHASH_H_INCLUDED_
#define _NGX_MURMURHASH_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


uint32_t ngx_murmur_hash2(u_char *data, size_t len);


#endif /* _NGX_MURMURHASH_H_INCLUDED_ */