KEYS: encrypted: Add check for strsep

Add check for strsep() in order to transfer the error. Fixes: cd3bc04 ("KEYS: encrypted: Instantiate key with user-provided decrypted data") Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
mariux64 · Nov 27, 2023 · b4af096 · b4af096
1 parent f17167b
commit b4af096
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c
@@ -237,6 +237,10 @@ static int datablob_parse(char *datablob, const char **format,
 			break;
 		}
 		*decrypted_data = strsep(&datablob, " \t");
+		if (!*decrypted_data) {
+			pr_info("encrypted_key: decrypted_data is missing\n");
+			break;
+		}
 		ret = 0;
 		break;
 	case Opt_load: