diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-06-14 13:34:05 +0300 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-07-31 13:37:52 -0400 |
| commit | ee99c95698470130a10d5145fec30d82b6369140 (patch) | |
| tree | e758956b69a705ef0a43d4605cd0d50b06da0a8e /net | |
| parent | 1a6224f1a27f6e4946df3037530b0eb8c7e2ba7b (diff) | |
xfrm: Oops on error in pfkey_msg2xfrm_state()
[ Upstream commit 1e3d0c2c70cd3edb5deed186c5f5c75f2b84a633 ]
There are some missing error codes here so we accidentally return NULL
instead of an error pointer. It results in a NULL pointer dereference.
Fixes: df71837d5024 ("[LSM-IPSec]: Security association restriction.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/key/af_key.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c index 6f1f6595da65..9a556e434f59 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -1147,8 +1147,10 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net, if (key) keysize = (key->sadb_key_bits + 7) / 8; x->aalg = kmalloc(sizeof(*x->aalg) + keysize, GFP_KERNEL); - if (!x->aalg) + if (!x->aalg) { + err = -ENOMEM; goto out; + } strcpy(x->aalg->alg_name, a->name); x->aalg->alg_key_len = 0; if (key) { @@ -1167,8 +1169,10 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net, goto out; } x->calg = kmalloc(sizeof(*x->calg), GFP_KERNEL); - if (!x->calg) + if (!x->calg) { + err = -ENOMEM; goto out; + } strcpy(x->calg->alg_name, a->name); x->props.calgo = sa->sadb_sa_encrypt; } else { @@ -1182,8 +1186,10 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net, if (key) keysize = (key->sadb_key_bits + 7) / 8; x->ealg = kmalloc(sizeof(*x->ealg) + keysize, GFP_KERNEL); - if (!x->ealg) + if (!x->ealg) { + err = -ENOMEM; goto out; + } strcpy(x->ealg->alg_name, a->name); x->ealg->alg_key_len = 0; if (key) { @@ -1227,8 +1233,10 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net, struct xfrm_encap_tmpl *natt; x->encap = kmalloc(sizeof(*x->encap), GFP_KERNEL); - if (!x->encap) + if (!x->encap) { + err = -ENOMEM; goto out; + } natt = x->encap; n_type = ext_hdrs[SADB_X_EXT_NAT_T_TYPE-1]; |