netdev - [PATCH iproute2] rdma: Avoid memory leak for skipper resource

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Message-Id: <20180220124718.16750-1-leon@kernel.org>
Date:   Tue, 20 Feb 2018 14:47:18 +0200
From:   Leon Romanovsky <leon@...nel.org>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     Leon Romanovsky <leonro@...lanox.com>,
        David Ahern <dsahern@...il.com>,
        netdev <netdev@...r.kernel.org>
Subject: [PATCH iproute2] rdma: Avoid memory leak for skipper resource

From: Leon Romanovsky <leonro@...lanox.com>

The call to get_task_name() allocates memory which is not freed
in case of skipping the object.

Fixes: 8ecac46a60ff ("rdma: Add QP resource tracking information")
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
---
 rdma/res.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/rdma/res.c b/rdma/res.c
index 2a63e712..62f5c544 100644
--- a/rdma/res.c
+++ b/rdma/res.c
@@ -395,8 +395,10 @@ static int res_qp_parse_cb(const struct nlmsghdr *nlh, void *data)
 			comm = get_task_name(pid);
 		}

-		if (rd_check_is_filtered(rd, "pid", pid))
+		if (rd_check_is_filtered(rd, "pid", pid)) {
+			free(comm);
 			continue;
+		}

 		if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])
 			/* discard const from mnl_attr_get_str */
--
2.16.1