From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Thu, 22 Aug 2024 14:20:30 +0000 (+0300)
Subject: lib-lua: dlua_check_event() - Fix calling with negative arg
X-Git-Tag: 2.4.0~1489
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7669f30c320dbb4f9945c6ebffc61fe5b187d45a;p=thirdparty%2Fdovecot%2Fcore.git

lib-lua: dlua_check_event() - Fix calling with negative arg
---

diff --git a/src/lib-lua/dlua-dovecot.c b/src/lib-lua/dlua-dovecot.c
index 5f23de151b..df382ddd30 100644
--- a/src/lib-lua/dlua-dovecot.c
+++ b/src/lib-lua/dlua-dovecot.c
@@ -258,6 +258,8 @@ struct event *dlua_check_event(lua_State *L, int arg)
 				 lua_typename(L, lua_type(L, arg)));
 	}
 	lua_pushliteral(L, "item");
+	if (arg < 0)
+		arg--;
 	lua_rawget(L, arg);
 	struct event **bp = (void*)lua_touserdata(L, -1);
 	lua_pop(L, 1);