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authorWang, Rui Y <rui.y.wang@intel.com>2016-01-27 17:08:37 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2016-01-30 22:05:15 +0800
commitfe09786178f9df713a4b2dd6b93c0a722346bf5e (patch)
tree9a9c372dd59104b12cf99828ed8a1ddcfb1b3c8c /crypto/algif_hash.c
parent00420a65fa2beb3206090ead86942484df2275f3 (diff)
downloadlinux-stericsson-fe09786178f9df713a4b2dd6b93c0a722346bf5e.tar.gz
crypto: algif_hash - wait for crypto_ahash_init() to complete
hash_sendmsg/sendpage() need to wait for the completion of crypto_ahash_init() otherwise it can cause panic. Cc: stable@vger.kernel.org Signed-off-by: Rui Wang <rui.y.wang@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/algif_hash.c')
-rw-r--r--crypto/algif_hash.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index 608a7562839d..68a5ceaa04c8 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -54,7 +54,8 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
lock_sock(sk);
if (!ctx->more) {
- err = crypto_ahash_init(&ctx->req);
+ err = af_alg_wait_for_completion(crypto_ahash_init(&ctx->req),
+ &ctx->completion);
if (err)
goto unlock;
}
@@ -125,6 +126,7 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page,
} else {
if (!ctx->more) {
err = crypto_ahash_init(&ctx->req);
+ err = af_alg_wait_for_completion(err, &ctx->completion);
if (err)
goto unlock;
}