PKCS#7: fix certificate blacklisting

[mirror_ubuntu-bionic-kernel.git] / crypto / asymmetric_keys / pkcs7_verify.c

diff --git a/crypto/asymmetric_keys/pkcs7_verify.c b/crypto/asymmetric_keys/pkcs7_verify.c
index 2f6a768b91d702307add099e82d2a5d63da2e517..97c77f66b20d680f9fc40dfcd6154881ef983a62 100644 (file)
--- a/crypto/asymmetric_keys/pkcs7_verify.c
+++ b/crypto/asymmetric_keys/pkcs7_verify.c
@@ -366,8 +366,7 @@ static int pkcs7_verify_one(struct pkcs7_message *pkcs7,
  *
  *  (*) -EBADMSG if some part of the message was invalid, or:
  *
- *  (*) 0 if no signature chains were found to be blacklisted or to contain
- *     unsupported crypto, or:
+ *  (*) 0 if a signature chain passed verification, or:
  *
  *  (*) -EKEYREJECTED if a blacklisted key was encountered, or:
  *
@@ -423,8 +422,11 @@ int pkcs7_verify(struct pkcs7_message *pkcs7,
 
        for (sinfo = pkcs7->signed_infos; sinfo; sinfo = sinfo->next) {
                ret = pkcs7_verify_one(pkcs7, sinfo);
-               if (sinfo->blacklisted && actual_ret == -ENOPKG)
-                       actual_ret = -EKEYREJECTED;
+               if (sinfo->blacklisted) {
+                       if (actual_ret == -ENOPKG)
+                               actual_ret = -EKEYREJECTED;
+                       continue;
+               }
                if (ret < 0) {
                        if (ret == -ENOPKG) {
                                sinfo->unsupported_crypto = true;