diff options
Diffstat (limited to 'drivers/char/tpm/tpm2-cmd.c')
| -rw-r--r-- | drivers/char/tpm/tpm2-cmd.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c index bd7039fafa8a..c12130485fc1 100644 --- a/drivers/char/tpm/tpm2-cmd.c +++ b/drivers/char/tpm/tpm2-cmd.c @@ -443,12 +443,13 @@ int tpm2_seal_trusted(struct tpm_chip *chip, TPM_DIGEST_SIZE); /* sensitive */ - tpm_buf_append_u16(&buf, 4 + TPM_DIGEST_SIZE + payload->key_len); + tpm_buf_append_u16(&buf, 4 + TPM_DIGEST_SIZE + payload->key_len + 1); tpm_buf_append_u16(&buf, TPM_DIGEST_SIZE); tpm_buf_append(&buf, options->blobauth, TPM_DIGEST_SIZE); - tpm_buf_append_u16(&buf, payload->key_len); + tpm_buf_append_u16(&buf, payload->key_len + 1); tpm_buf_append(&buf, payload->key, payload->key_len); + tpm_buf_append_u8(&buf, payload->migratable); /* public */ tpm_buf_append_u16(&buf, 14); @@ -573,6 +574,8 @@ static int tpm2_unseal(struct tpm_chip *chip, u32 blob_handle) { struct tpm_buf buf; + u16 data_len; + u8 *data; int rc; rc = tpm_buf_init(&buf, TPM2_ST_SESSIONS, TPM2_CC_UNSEAL); @@ -591,11 +594,13 @@ static int tpm2_unseal(struct tpm_chip *chip, rc = -EPERM; if (!rc) { - payload->key_len = be16_to_cpup( + data_len = be16_to_cpup( (__be16 *) &buf.data[TPM_HEADER_SIZE + 4]); + data = &buf.data[TPM_HEADER_SIZE + 6]; - memcpy(payload->key, &buf.data[TPM_HEADER_SIZE + 6], - payload->key_len); + memcpy(payload->key, data, data_len - 1); + payload->key_len = data_len - 1; + payload->migratable = data[data_len - 1]; } tpm_buf_destroy(&buf); |