From: Herbert Xu herbert@gondor.apana.org.au
stable inclusion from stable-v4.19.276 commit a023f1a938ad43642ad68f68527001e5686f5e60 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6TIG1 CVE: NA
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[ Upstream commit 564cabc0ca0bdfa8f0fc1ae74b24d0a7554522c5 ]
Use the akcipher_request_complete helper instead of calling the completion function directly. In fact the previous code was buggy in that EINPROGRESS was never passed back to the original caller.
Fixes: 3d5b1ecdea6f ("crypto: rsa - RSA padding algorithm") Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yongqiang Liu liuyongqiang13@huawei.com --- crypto/rsa-pkcs1pad.c | 34 +++++++++++++++------------------- 1 file changed, 15 insertions(+), 19 deletions(-)
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c index 48bd07e22a1d..e2fe43f4b4c6 100644 --- a/crypto/rsa-pkcs1pad.c +++ b/crypto/rsa-pkcs1pad.c @@ -216,16 +216,14 @@ static void pkcs1pad_encrypt_sign_complete_cb( struct crypto_async_request *child_async_req, int err) { struct akcipher_request *req = child_async_req->data; - struct crypto_async_request async_req;
if (err == -EINPROGRESS) - return; + goto out; + + err = pkcs1pad_encrypt_sign_complete(req, err);
- async_req.data = req->base.data; - async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req)); - async_req.flags = child_async_req->flags; - req->base.complete(&async_req, - pkcs1pad_encrypt_sign_complete(req, err)); +out: + akcipher_request_complete(req, err); }
static int pkcs1pad_encrypt(struct akcipher_request *req) @@ -334,15 +332,14 @@ static void pkcs1pad_decrypt_complete_cb( struct crypto_async_request *child_async_req, int err) { struct akcipher_request *req = child_async_req->data; - struct crypto_async_request async_req;
if (err == -EINPROGRESS) - return; + goto out; + + err = pkcs1pad_decrypt_complete(req, err);
- async_req.data = req->base.data; - async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req)); - async_req.flags = child_async_req->flags; - req->base.complete(&async_req, pkcs1pad_decrypt_complete(req, err)); +out: + akcipher_request_complete(req, err); }
static int pkcs1pad_decrypt(struct akcipher_request *req) @@ -502,15 +499,14 @@ static void pkcs1pad_verify_complete_cb( struct crypto_async_request *child_async_req, int err) { struct akcipher_request *req = child_async_req->data; - struct crypto_async_request async_req;
if (err == -EINPROGRESS) - return; + goto out;
- async_req.data = req->base.data; - async_req.tfm = crypto_akcipher_tfm(crypto_akcipher_reqtfm(req)); - async_req.flags = child_async_req->flags; - req->base.complete(&async_req, pkcs1pad_verify_complete(req, err)); + err = pkcs1pad_verify_complete(req, err); + +out: + akcipher_request_complete(req, err); }
/*