From: Gary R Hook <[email protected]>
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: <[email protected]>
Signed-off-by: Gary R Hook <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
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
@@ -859,11 +859,11 @@ 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:
