From: Damjan Marion <damarion@cisco.com>
Date: Mon, 24 Feb 2020 13:13:18 +0000 (+0100)
Subject: crypto-native: do not overwrite data after partial tag
X-Git-Tag: v20.09-rc0~530
X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=commitdiff_plain;h=2e9a06fa6013e4ac9be3325c2755e0631d9c6ae4

crypto-native: do not overwrite data after partial tag

Type: fix

Change-Id: I01de5f8813faff5406ccf67c21c42393c8648af6
Signed-off-by: Damjan Marion <damarion@cisco.com>
---

diff --git a/src/plugins/crypto_native/aes_gcm.c b/src/plugins/crypto_native/aes_gcm.c
index 41a9d480269..d0f57da1e09 100644
--- a/src/plugins/crypto_native/aes_gcm.c
+++ b/src/plugins/crypto_native/aes_gcm.c
@@ -579,7 +579,7 @@ aes_gcm (u8x16u * in, u8x16u * out, u8x16u * addt, u8x16u * iv, u8x16u * tag,
     {
       /* store tag */
       if (tag_len)
-	aes_store_partial (tag, T, (1 << tag_len) - 1);
+	aes_store_partial (tag, T, tag_len);
       else
 	tag[0] = T;
     }