nginx 0.7.47 *) Bugfix: nginx could not be built on FreeBSD 6 and early versions; the bug had appeared in 0.7.46. *) Bugfix: nginx could not be built on MacOSX; the bug had appeared in 0.7.46. *) Bugfix: if the "max_size" parameter was set, then the cache manager might purge a whole cache; the bug had appeared in 0.7.46. *) Change: a segmentation fault might occur in worker process, if the "proxy_cache"/"fastcgi_cache" and the "proxy_cache_valid"/ "fastcgi_cache_valid" were set on different levels; the bug had appeared in 0.7.46. *) Bugfix: a segmentation fault might occur in worker process, if a request was redirected to a proxied or FastCGI server via error_page or try_files; the bug had appeared in 0.7.44.

--- a/src/http/ngx_http_parse.c
+++ b/src/http/ngx_http_parse.c
@@ -1534,6 +1534,8 @@ ngx_http_split_args(ngx_http_request_t *
 
     last = p + uri->len;
 
+    args->len = 0;
+
     while (p < last) {
 
         ch = *p++;