From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Wed, 1 May 2019 15:49:23 +0000 (+0100)
Subject: [Minor] Add shrinking failsafety
X-Git-Tag: 1.9.3~43
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=59cfa81d517303d6159e5abb24db26bef1104c21;p=rspamd.git

[Minor] Add shrinking failsafety
---

diff --git a/src/lua/lua_common.c b/src/lua/lua_common.c
index b83b68bf0..5f25d837d 100644
--- a/src/lua/lua_common.c
+++ b/src/lua/lua_common.c
@@ -894,6 +894,11 @@ rspamd_lua_wipe_realloc (void *ud,
 		return malloc (nsize);
 	}
 	else {
+		if (nsize < osize) {
+			/* Wipe on shrinking (actually never used) */
+			rspamd_explicit_memzero (((unsigned char *)ptr) + nsize, osize - nsize);
+		}
+
 		return realloc (ptr, nsize);
 	}