From: Gary R Hook gary.hook@amd.com
commit 25e44338321af545ab34243a6081c3f0fc6107d0 upstream.
A plaintext or ciphertext length of 0 is allowed in AES, in which case no encryption occurs. Ensure that we don't clean up data structures that were never allocated.
Fixes: 36cf515b9bbe2 ("crypto: ccp - Enable support for AES GCM on v5 CCPs") Cc: stable@vger.kernel.org Signed-off-by: Gary R Hook gary.hook@amd.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/crypto/ccp/ccp-ops.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/crypto/ccp/ccp-ops.c +++ b/drivers/crypto/ccp/ccp-ops.c @@ -841,11 +841,11 @@ e_tag: ccp_dm_free(&final_wa);
e_dst: - if (aes->src_len && !in_place) + if (ilen > 0 && !in_place) ccp_free_data(&dst, cmd_q);
e_src: - if (aes->src_len) + if (ilen > 0) ccp_free_data(&src, cmd_q);
e_aad: