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author | Wang, Rui Y <rui.y.wang@intel.com> | 2016-01-27 17:08:37 +0800 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-01-30 22:05:15 +0800 |
commit | 5c9c3454b6d8551cb47466829b9ef6aee5b4f715 (patch) | |
tree | 6a97d689f7ec5ac17964dbecc0ffd6638213003a | |
parent | 2826e8665463f4cc132f3f2482286a649f672ad7 (diff) | |
download | linux-crypto-5c9c3454b6d8551cb47466829b9ef6aee5b4f715.tar.gz linux-crypto-5c9c3454b6d8551cb47466829b9ef6aee5b4f715.zip |
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 '')
-rw-r--r-- | crypto/algif_hash.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c index 608a7562..68a5ceaa 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; } |