nginx 0.7.54 *) Feature: the ngx_http_image_filter_module. *) Feature: the "proxy_ignore_headers" and "fastcgi_ignore_headers" directives. *) Bugfix: a segmentation fault might occur in worker process, if an "open_file_cache_errors off" directive was used; the bug had appeared in 0.7.53. *) Bugfix: the "port_in_redirect off" directive did not work; the bug had appeared in 0.7.39. *) Bugfix: improve handling of "select" method errors. *) Bugfix: of "select() failed (10022: ...)" error in nginx/Windows. *) Bugfix: in error text descriptions in nginx/Windows; the bug had appeared in 0.7.53.

--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -1306,7 +1306,7 @@ ngx_ssl_error(ngx_uint_t level, ngx_log_
     last = errstr + NGX_MAX_CONF_ERRSTR;
 
     va_start(args, fmt);
-    p = ngx_vsnprintf(errstr, sizeof(errstr) - 1, fmt, args);
+    p = ngx_vslprintf(errstr, last - 1, fmt, args);
     va_end(args);
 
     p = ngx_cpystrn(p, (u_char *) " (SSL:", last - p);