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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2018-01-10 11:33:26 +0300 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2018-01-10 11:45:11 +0300 |
| commit | 1e532d2b49645e7cb76d5af6cb5bc4ec93d861ae (patch) | |
| tree | 511cdfd2168fbdd9c5ab32573fca8c4e9299fc45 | |
| parent | 374d1b5a81f7f9cc5e7f095ac3d5aff3f6600376 (diff) | |
| download | linux-1e532d2b49645e7cb76d5af6cb5bc4ec93d861ae.tar.xz | |
af_key: Fix memory leak in key_notify_policy.
We leak the allocated out_skb in case
pfkey_xfrm_policy2msg() fails. Fix this
by freeing it on error.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
| -rw-r--r-- | net/key/af_key.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c index d40861a048fe..7e2e7188e7f4 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -2202,8 +2202,10 @@ static int key_notify_policy(struct xfrm_policy *xp, int dir, const struct km_ev return PTR_ERR(out_skb); err = pfkey_xfrm_policy2msg(out_skb, xp, dir); - if (err < 0) + if (err < 0) { + kfree_skb(out_skb); return err; + } out_hdr = (struct sadb_msg *) out_skb->data; out_hdr->sadb_msg_version = PF_KEY_V2; |