From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> This patch has been added to the 3.12 stable tree. If you have any objections, please let us know. =============== commit a383292c86663bbc31ac62cc0c04fc77504636a6 upstream. When we fail an accept(2) call we will end up freeing the socket twice, once due to the direct sk_free call and once again through newsock. This patch fixes this by removing the sk_free call. Reported-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> --- crypto/af_alg.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/crypto/af_alg.c b/crypto/af_alg.c index d7fefeb3d1a7..0ca108f3c840 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -275,10 +275,8 @@ int af_alg_accept(struct sock *sk, struct socket *newsock) security_sk_clone(sk, sk2); err = type->accept(ask->private, sk2); - if (err) { - sk_free(sk2); + if (err) goto unlock; - } sk2->sk_family = PF_ALG; -- 2.7.1 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html