From: Daniel Salzman <daniel.salzman@nic.cz>
Date: Sat, 9 May 2020 07:31:41 +0000 (+0200)
Subject: modupd: fix heap-buffer-overflow for XDP access
X-Git-Tag: embedded_lmdb~5
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=70c245d5873ec1ae2229fdbfbcaebcfa725039c8;p=thirdparty%2Fknot-dns.git

modupd: fix heap-buffer-overflow for XDP access
---

diff --git a/src/knot/modules/noudp/noudp.c b/src/knot/modules/noudp/noudp.c
index 891c4c044f..d7fb5b09b0 100644
--- a/src/knot/modules/noudp/noudp.c
+++ b/src/knot/modules/noudp/noudp.c
@@ -60,8 +60,9 @@ int noudp_load(knotd_mod_t *mod)
 	ctx->rate = conf.single.integer;
 	if (ctx->rate > 0) {
 		knotd_conf_t udp = knotd_conf_env(mod, KNOTD_CONF_ENV_WORKERS_UDP);
+		knotd_conf_t tcp = knotd_conf_env(mod, KNOTD_CONF_ENV_WORKERS_TCP);
 		knotd_conf_t xdp = knotd_conf_env(mod, KNOTD_CONF_ENV_WORKERS_XDP);
-		size_t workers = udp.single.integer + xdp.single.integer;
+		size_t workers = udp.single.integer + tcp.single.integer + xdp.single.integer;
 		ctx->counters = calloc(workers, sizeof(uint32_t));
 		if (ctx->counters == NULL) {
 			free(ctx);