diff options
| -rw-r--r-- | crypto/block-luks.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/crypto/block-luks.c b/crypto/block-luks.c index f12fa2d270..25f8a9f1c4 100644 --- a/crypto/block-luks.c +++ b/crypto/block-luks.c @@ -645,6 +645,7 @@ qcrypto_block_luks_open(QCryptoBlock *block, QCryptoHashAlgorithm hash; QCryptoHashAlgorithm ivhash; g_autofree char *password = NULL; + g_autofree char *cipher_mode = NULL; if (!(flags & QCRYPTO_BLOCK_OPEN_NO_IO)) { if (!options->u.luks.key_secret) { @@ -701,6 +702,8 @@ qcrypto_block_luks_open(QCryptoBlock *block, goto fail; } + cipher_mode = g_strdup(luks->header.cipher_mode); + /* * The cipher_mode header contains a string that we have * to further parse, of the format @@ -709,11 +712,11 @@ qcrypto_block_luks_open(QCryptoBlock *block, * * eg cbc-essiv:sha256, cbc-plain64 */ - ivgen_name = strchr(luks->header.cipher_mode, '-'); + ivgen_name = strchr(cipher_mode, '-'); if (!ivgen_name) { ret = -EINVAL; error_setg(errp, "Unexpected cipher mode string format %s", - luks->header.cipher_mode); + cipher_mode); goto fail; } *ivgen_name = '\0'; @@ -735,7 +738,7 @@ qcrypto_block_luks_open(QCryptoBlock *block, } } - ciphermode = qcrypto_block_luks_cipher_mode_lookup(luks->header.cipher_mode, + ciphermode = qcrypto_block_luks_cipher_mode_lookup(cipher_mode, &local_err); if (local_err) { ret = -ENOTSUP; |