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Date: Wed, 1 Nov 2017 22:26:59 +0100 From: Willy Tarreau <w@....eu> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, linux@...ck-us.net Cc: Pan Bian <bianpan2016@....com>, "David S . Miller" <davem@...emloft.net>, Willy Tarreau <w@....eu> Subject: [PATCH 3.10 134/139] team: fix memory leaks From: Pan Bian <bianpan2016@....com> commit 72ec0bc64b9a5d8e0efcb717abfc757746b101b7 upstream. 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@....com> Acked-by: Jiri Pirko <jiri@...lanox.com> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Willy Tarreau <w@....eu> --- 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 5225d43..0a3ad7b 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -2121,8 +2121,10 @@ start_again: 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; @@ -2389,8 +2391,10 @@ start_again: 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; -- 2.8.0.rc2.1.gbe9624a
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