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-rw-r--r--security/integrity/ima/ima_appraise.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index a705598ced5f..1fd9539a969d 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -130,6 +130,7 @@ enum hash_algo ima_get_hash_algo(struct evm_ima_xattr_data *xattr_value,
int xattr_len)
{
struct signature_v2_hdr *sig;
+ enum hash_algo ret;
if (!xattr_value || xattr_len < 2)
/* return default hash algo */
@@ -143,7 +144,9 @@ enum hash_algo ima_get_hash_algo(struct evm_ima_xattr_data *xattr_value,
return sig->hash_algo;
break;
case IMA_XATTR_DIGEST_NG:
- return xattr_value->digest[0];
+ ret = xattr_value->digest[0];
+ if (ret < HASH_ALGO__LAST)
+ return ret;
break;
case IMA_XATTR_DIGEST:
/* this is for backward compatibility */