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[mod_wstunnel] fix crash with bad hybivers (fixes #3165) 

(thx Michał Dardas)

x-ref:
  "mod_wstunnel null pointer dereference"
  https://redmine.lighttpd.net/issues/3165
This commit is contained in:
Glenn Strauss 2022-08-03 01:20:56 -04:00
parent 5d80e41ab2
commit 971773f1fa
1 changed files with 4 additions and 1 deletions
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5
src/mod_wstunnel.c
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@ -485,7 +485,10 @@ static handler_t wstunnel_handler_setup (request_st * const r, plugin_data * con
hctx->errh = r->conf.errh;/*(for mod_wstunnel-specific DEBUG_* macros)*/
hctx->conf = p->conf; /*(copies struct)*/
hybivers = wstunnel_check_request(r, hctx);
if (hybivers < 0) return HANDLER_FINISHED;
if (hybivers < 0) {
r->handler_module = NULL;
return HANDLER_FINISHED;
}
hctx->hybivers = hybivers;
if (0 == hybivers) {
DEBUG_LOG_INFO("WebSocket Version = %s", "hybi-00");