From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Kangjie Lu <kjlu@umn.edu>, Jon Maloy <jon.maloy@ericsson.com>,
Ying Xue <ying.xue@windriver.com>,
"David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net,
linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] tipc: fix memory leak in tipc_nl_compat_publ_dump
Date: Sat, 5 Jan 2019 10:52:23 -0600 [thread overview]
Message-ID: <20190105165223.GA3296@embeddedor> (raw)
There is a memory leak in case genlmsg_put fails.
Fix this by freeing *args* before return.
Addresses-Coverity-ID: 1476406 ("Resource leak")
Fixes: 46273cf7e009 ("tipc: fix a missing check of genlmsg_put")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
net/tipc/netlink_compat.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index 40f5cae623a7..77e4b2418f30 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -904,8 +904,10 @@ static int tipc_nl_compat_publ_dump(struct tipc_nl_compat_msg *msg, u32 sock)
hdr = genlmsg_put(args, 0, 0, &tipc_genl_family, NLM_F_MULTI,
TIPC_NL_PUBL_GET);
- if (!hdr)
+ if (!hdr) {
+ kfree_skb(args);
return -EMSGSIZE;
+ }
nest = nla_nest_start(args, TIPC_NLA_SOCK);
if (!nest) {
--
2.20.1
next reply other threads:[~2019-01-05 16:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-05 16:52 Gustavo A. R. Silva [this message]
2019-01-06 5:41 ` [PATCH] tipc: fix memory leak in tipc_nl_compat_publ_dump Ying Xue
2019-01-07 16:45 ` David Miller
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