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

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SVN-Revision: 15573
This commit is contained in:
Jo-Philipp Wich 2009-05-03 14:31:36 +00:00
parent 8c7602a3f4
commit 1b890c945c
1 changed files with 13 additions and 0 deletions
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13
package/iptables/patches/1.4.3.2/010-xtables-parse-protocol-crash.patch Normal file
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@ -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;
}