X-Git-Url: http://git.apps.os.sepia.ceph.com/?p=xfstests-dev.git;a=blobdiff_plain;f=src%2Ffscrypt-crypt-util.c;h=03cc3c4a12997734195a455c1bfd2ba249525c5c;hp=26698d7a30e7fe9c26650410b8423555c9c80e0f;hb=609bb3562241f9fc877aff7309d62af6cb10795d;hpb=0743230c36029be5f686e278cbd154ae263b44b6

diff --git a/src/fscrypt-crypt-util.c b/src/fscrypt-crypt-util.c
index 26698d7a..03cc3c4a 100644
--- a/src/fscrypt-crypt-util.c
+++ b/src/fscrypt-crypt-util.c
@@ -1642,6 +1642,7 @@ static u64 siphash_1u64(const u64 key[2], u64 data)
 #define FILE_NONCE_SIZE		16
 #define UUID_SIZE		16
 #define MAX_KEY_SIZE		64
+#define MAX_IV_SIZE		ADIANTUM_IV_SIZE
 
 static const struct fscrypt_cipher {
 	const char *name;
@@ -1715,6 +1716,8 @@ union fscrypt_iv {
 		/* IV_INO_LBLK_64: inode number */
 		__le32 inode_number;
 	};
+	/* Any extra bytes up to the algorithm's IV size must be zeroed */
+	u8 bytes[MAX_IV_SIZE];
 };
 
 static void crypt_loop(const struct fscrypt_cipher *cipher, const u8 *key,
@@ -1736,9 +1739,9 @@ static void crypt_loop(const struct fscrypt_cipher *cipher, const u8 *key,
 		memset(&buf[res], 0, crypt_len - res);
 
 		if (decrypting)
-			cipher->decrypt(key, (u8 *)iv, buf, buf, crypt_len);
+			cipher->decrypt(key, iv->bytes, buf, buf, crypt_len);
 		else
-			cipher->encrypt(key, (u8 *)iv, buf, buf, crypt_len);
+			cipher->encrypt(key, iv->bytes, buf, buf, crypt_len);
 
 		full_write(STDOUT_FILENO, buf, crypt_len);