diff options
| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2022-05-17 17:42:31 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-25 09:17:59 +0200 |
| commit | 7b676abe328a476ca1f718a6effff3b1e44cde3d (patch) | |
| tree | f18d4e0be6900a189f67bfc1369d7c87c95f87c7 /net | |
| parent | 697f3219ee2f1ad3b3be1172164e393f18337a77 (diff) | |
net: af_key: add check for pfkey_broadcast in function pfkey_process
[ Upstream commit 4dc2a5a8f6754492180741facf2a8787f2c415d7 ]
If skb_clone() returns null pointer, pfkey_broadcast() will
return error.
Therefore, it should be better to check the return value of
pfkey_broadcast() and return error if fails.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/key/af_key.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c index bd9b5c573b5a..61505b0df57d 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -2830,8 +2830,10 @@ static int pfkey_process(struct sock *sk, struct sk_buff *skb, const struct sadb void *ext_hdrs[SADB_EXT_MAX]; int err; - pfkey_broadcast(skb_clone(skb, GFP_KERNEL), GFP_KERNEL, - BROADCAST_PROMISC_ONLY, NULL, sock_net(sk)); + err = pfkey_broadcast(skb_clone(skb, GFP_KERNEL), GFP_KERNEL, + BROADCAST_PROMISC_ONLY, NULL, sock_net(sk)); + if (err) + return err; memset(ext_hdrs, 0, sizeof(ext_hdrs)); err = parse_exthdrs(skb, hdr, ext_hdrs); |