iptables: fix segfault in xtables_parse_protocol() if an unknown protocol is specified for -p

SVN-Revision: 15573
15 years ago · 1b890c945c
parent 8c7602a3f4
commit 1b890c945c
1 changed files with 13 additions and 0 deletions
--- a/package/iptables/patches/1.4.3.2/010-xtables-parse-protocol-crash.patch
+++ b/package/iptables/patches/1.4.3.2/010-xtables-parse-protocol-crash.patch
@ -0,0 +1,13 @@
+diff -ur iptables-1.4.3.2.orig/xtables.c iptables-1.4.3.2/xtables.c
+--- iptables-1.4.3.2.orig/xtables.c	2009-05-03 16:17:53.000000000 +0200
+++ iptables-1.4.3.2/xtables.c	2009-05-03 16:27:37.000000000 +0200
+@@ -1502,7 +1502,8 @@
+ 		else {
+ 			unsigned int i;
+ 			for (i = 0; i < ARRAY_SIZE(xtables_chain_protos); ++i) {
+-				if (strcmp(s, xtables_chain_protos[i].name) == 0) {
+				if ((xtables_chain_protos[i].name != NULL) &&
+				    (strcmp(s, xtables_chain_protos[i].name) == 0)) {
+ 					proto = xtables_chain_protos[i].num;
+ 					break;
+ 				}