From ae12c4ca15f8e83257d28cff10c3117cfbdba59c Mon Sep 17 00:00:00 2001 From: ae Date: Wed, 11 May 2016 10:04:32 +0000 Subject: Fix memory leak possible in error case. Use free_rule() instead of free(), it will also release memory allocated for rule counters. Obtained from: Yandex LLC Sponsored by: Yandex LLC --- sys/netpfil/ipfw/ip_fw_sockopt.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'sys/netpfil/ipfw') diff --git a/sys/netpfil/ipfw/ip_fw_sockopt.c b/sys/netpfil/ipfw/ip_fw_sockopt.c index 2f41d23..c183dfc 100644 --- a/sys/netpfil/ipfw/ip_fw_sockopt.c +++ b/sys/netpfil/ipfw/ip_fw_sockopt.c @@ -2751,7 +2751,7 @@ add_rules(struct ip_fw_chain *chain, ip_fw3_opheader *op3, if ((error = commit_rules(chain, cbuf, rtlv->count)) != 0) { /* Free allocate krules */ for (i = 0, ci = cbuf; i < rtlv->count; i++, ci++) - free(ci->krule, M_IPFW); + free_rule(ci->krule); } if (cbuf != NULL && cbuf != &rci) @@ -3574,7 +3574,9 @@ ipfw_ctl(struct sockopt *sopt) ci.krule = krule; import_rule0(&ci); error = commit_rules(chain, &ci, 1); - if (!error && sopt->sopt_dir == SOPT_GET) { + if (error != 0) + free_rule(ci.krule); + else if (sopt->sopt_dir == SOPT_GET) { if (is7) { error = convert_rule_to_7(rule); size = RULESIZE7(rule); -- cgit v1.1