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authorHerbert Xu <herbert@gondor.apana.org.au>2016-01-13 14:59:03 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2016-01-18 18:16:32 +0800
commit6a935170a980024dd29199e9dbb5c4da4767a1b9 (patch)
tree367c9181e955fc1d2bd242defe62593705575c8e /crypto
parent70401f4edc331c3c8068fc13b93d784a72de053e (diff)
downloadlinux-6a935170a980024dd29199e9dbb5c4da4767a1b9.tar.bz2
crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path
This patch allows af_alg_release_parent to be called even for nokey sockets. Cc: stable@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/af_alg.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 6566d2eb0142..e7cb8367771d 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -133,6 +133,12 @@ void af_alg_release_parent(struct sock *sk)
bool last;
sk = ask->parent;
+
+ if (ask->nokey_refcnt && !ask->refcnt) {
+ sock_put(sk);
+ return;
+ }
+
ask = alg_sk(sk);
lock_sock(sk);
@@ -268,8 +274,8 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
struct alg_sock *ask = alg_sk(sk);
const struct af_alg_type *type;
struct sock *sk2;
+ unsigned int nokey;
int err;
- bool nokey;
lock_sock(sk);
type = ask->type;
@@ -302,6 +308,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
sock_hold(sk);
alg_sk(sk2)->parent = sk;
alg_sk(sk2)->type = type;
+ alg_sk(sk2)->nokey_refcnt = nokey;
newsock->ops = type->ops;
newsock->state = SS_CONNECTED;