Author: ae
Date: Sat Oct 3 03:12:57 2015
New Revision: 288528
URL: https://svnweb.freebsd.org/changeset/base/288528
Log:
Fix possible segmentation fault.
PR: 203494
MFC after: 1 week
Modified:
head/sbin/ipfw/ipfw2.c
Modified: head/sbin/ipfw/ipfw2.c
==============================================================================
--- head/sbin/ipfw/ipfw2.c Sat Oct 3 00:57:33 2015 (r288527)
+++ head/sbin/ipfw/ipfw2.c Sat Oct 3 03:12:57 2015 (r288528)
@@ -3625,7 +3625,7 @@ compile_rule(char *av[], uint32_t *rbuf,
action->opcode = O_NAT;
action->len = F_INSN_SIZE(ipfw_insn_nat);
CHECK_ACTLEN;
- if (_substrcmp(*av, "global") == 0) {
+ if (*av != NULL && _substrcmp(*av, "global") == 0) {
action->arg1 = 0;
av++;
break;
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