crypto: cryptd - Fix AEAD request context corruption

[karo-tx-linux.git] / crypto / cryptd.c

diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 22ba81f76764aff2edd614ad8fad2914df33a8a9..2f833dcc1711aa7c38f882ac35451407d8f58924 100644 (file)
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -688,16 +688,18 @@ static void cryptd_aead_crypt(struct aead_request *req,
                        int (*crypt)(struct aead_request *req))
 {
        struct cryptd_aead_request_ctx *rctx;
+       crypto_completion_t compl;
+
        rctx = aead_request_ctx(req);
+       compl = rctx->complete;
 
        if (unlikely(err == -EINPROGRESS))
                goto out;
        aead_request_set_tfm(req, child);
        err = crypt( req );
-       req->base.complete = rctx->complete;
 out:
        local_bh_disable();
-       rctx->complete(&req->base, err);
+       compl(&req->base, err);
        local_bh_enable();
 }
 
@@ -756,7 +758,9 @@ static int cryptd_aead_init_tfm(struct crypto_aead *tfm)
                return PTR_ERR(cipher);
 
        ctx->child = cipher;
-       crypto_aead_set_reqsize(tfm, sizeof(struct cryptd_aead_request_ctx));
+       crypto_aead_set_reqsize(
+               tfm, max((unsigned)sizeof(struct cryptd_aead_request_ctx),
+                        crypto_aead_reqsize(cipher)));
        return 0;
 }
 
@@ -775,7 +779,7 @@ static int cryptd_create_aead(struct crypto_template *tmpl,
        struct aead_alg *alg;
        const char *name;
        u32 type = 0;
-       u32 mask = 0;
+       u32 mask = CRYPTO_ALG_ASYNC;
        int err;
 
        cryptd_check_internal(tb, &type, &mask);