lkml.org 
[lkml]   [2017]   [Sep]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH for 4.9 03/39] team: fix memory leaks
Date
From: Pan Bian <bianpan2016@163.com>

[ Upstream commit 72ec0bc64b9a5d8e0efcb717abfc757746b101b7 ]

In functions team_nl_send_port_list_get() and
team_nl_send_options_get(), pointer skb keeps the return value of
nlmsg_new(). When the call to genlmsg_put() fails, the memory is not
freed(). This will result in memory leak bugs.

Fixes: 9b00cf2d1024 ("team: implement multipart netlink messages for options transfers")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
---
drivers/net/team/team.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index a380649bf6b5..26681707fc7a 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2366,8 +2366,10 @@ static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq,

hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
TEAM_CMD_OPTIONS_GET);
- if (!hdr)
+ if (!hdr) {
+ nlmsg_free(skb);
return -EMSGSIZE;
+ }

if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
goto nla_put_failure;
@@ -2639,8 +2641,10 @@ static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq,

hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
TEAM_CMD_PORT_LIST_GET);
- if (!hdr)
+ if (!hdr) {
+ nlmsg_free(skb);
return -EMSGSIZE;
+ }

if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
goto nla_put_failure;
--
2.11.0
\
 
 \ /
  Last update: 2017-09-18 02:24    [W:0.221 / U:1.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site