diff options
| author | Tadeusz Struk <tadeusz.struk@intel.com> | 2016-04-06 14:42:32 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2016-04-15 22:13:55 +0800 |
| commit | 6f0904ada402a45b3a0a3b9b6507d91d3a9da67a (patch) | |
| tree | 81481775bdc12aa649e9a0b805437618d9620756 /crypto | |
| parent | 47cd30608f3fc3dbb4fdf37300baca911e2dde34 (diff) | |
| download | lwn-6f0904ada402a45b3a0a3b9b6507d91d3a9da67a.tar.gz lwn-6f0904ada402a45b3a0a3b9b6507d91d3a9da67a.zip | |
crypto: rsa-pkcs1pad - fix dst len
The output buffer length has to be at least as big as the key_size.
It is then updated to the actual output size by the implementation.
Cc: <stable@vger.kernel.org>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/rsa-pkcs1pad.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c index 1cea67d43e1d..ead8dc0d084e 100644 --- a/crypto/rsa-pkcs1pad.c +++ b/crypto/rsa-pkcs1pad.c @@ -387,16 +387,16 @@ static int pkcs1pad_decrypt(struct akcipher_request *req) req_ctx->child_req.src = req->src; req_ctx->child_req.src_len = req->src_len; req_ctx->child_req.dst = req_ctx->out_sg; - req_ctx->child_req.dst_len = ctx->key_size - 1; + req_ctx->child_req.dst_len = ctx->key_size ; - req_ctx->out_buf = kmalloc(ctx->key_size - 1, + req_ctx->out_buf = kmalloc(ctx->key_size, (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? GFP_KERNEL : GFP_ATOMIC); if (!req_ctx->out_buf) return -ENOMEM; pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf, - ctx->key_size - 1, NULL); + ctx->key_size, NULL); akcipher_request_set_tfm(&req_ctx->child_req, ctx->child); akcipher_request_set_callback(&req_ctx->child_req, req->base.flags, @@ -595,16 +595,16 @@ static int pkcs1pad_verify(struct akcipher_request *req) req_ctx->child_req.src = req->src; req_ctx->child_req.src_len = req->src_len; req_ctx->child_req.dst = req_ctx->out_sg; - req_ctx->child_req.dst_len = ctx->key_size - 1; + req_ctx->child_req.dst_len = ctx->key_size; - req_ctx->out_buf = kmalloc(ctx->key_size - 1, + req_ctx->out_buf = kmalloc(ctx->key_size, (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? GFP_KERNEL : GFP_ATOMIC); if (!req_ctx->out_buf) return -ENOMEM; pkcs1pad_sg_set_buf(req_ctx->out_sg, req_ctx->out_buf, - ctx->key_size - 1, NULL); + ctx->key_size, NULL); akcipher_request_set_tfm(&req_ctx->child_req, ctx->child); akcipher_request_set_callback(&req_ctx->child_req, req->base.flags, |