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Subject[PATCH] net: ncsi: fix a missing check for nla_nest_start
Date
nla_nest_start may fail and thus deserves a check.

The fix returns -EMSGSIZE in case it fails.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
net/ncsi/ncsi-netlink.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/net/ncsi/ncsi-netlink.c b/net/ncsi/ncsi-netlink.c
index 5d782445d2fc..bad17bba8ba7 100644
--- a/net/ncsi/ncsi-netlink.c
+++ b/net/ncsi/ncsi-netlink.c
@@ -251,6 +251,10 @@ static int ncsi_pkg_info_all_nl(struct sk_buff *skb,
}

attr = nla_nest_start(skb, NCSI_ATTR_PACKAGE_LIST);
+ if (!attr) {
+ rc = -EMSGSIZE;
+ goto err;
+ }
rc = ncsi_write_package_info(skb, ndp, package->id);
if (rc) {
nla_nest_cancel(skb, attr);
--
2.17.1
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