[PATCH 2/2] team: fix memory leak
From: Pan Bian <hidden>
Date: 2017-04-23 07:30:02
Also in:
lkml
Subsystem:
networking drivers, team driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Jiri Pirko, Linus Torvalds
In function team_nl_send_options_get(), pointer skb keeps the return value of function nlmsg_new(). When the call to genlmsg_put() fails, the control flow directly returns and does not free skb. This will result in a memory leak bug. This patch fixes it. Signed-off-by: Pan Bian <redacted> --- drivers/net/team/team.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index dd3a2e9..85c0124 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c@@ -2361,8 +2361,10 @@ 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;
--
1.9.1