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| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2022-05-17 17:42:31 +0800 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2022-05-18 09:23:54 +0200 |
| commit | 4dc2a5a8f6754492180741facf2a8787f2c415d7 (patch) | |
| tree | b2a50cb788a872e1854f12e8d03ae0ca629be62f /net/key | |
| parent | e6175a2ed1f18bf2f649625bf725e07adcfa6a28 (diff) | |
| download | linux-4dc2a5a8f6754492180741facf2a8787f2c415d7.tar.gz linux-4dc2a5a8f6754492180741facf2a8787f2c415d7.tar.bz2 linux-4dc2a5a8f6754492180741facf2a8787f2c415d7.zip | |
net: af_key: add check for pfkey_broadcast in function pfkey_process
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>
Diffstat (limited to 'net/key')
| -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 fd51db3be91c..92e9d75dba2f 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -2826,8 +2826,10 @@ 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); |