Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux...

[firefly-linux-kernel-4.4.55.git] / security / keys / request_key.c

diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 95d5cfc172c624a6c2ffec7f8d77a7832bca2173..c7a117c9a8f3030d66afc6cbf5767ce5069c813b 100644 (file)
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -440,6 +440,9 @@ static struct key *construct_key_and_link(struct keyring_search_context *ctx,
 
        kenter("");
 
+       if (ctx->index_key.type == &key_type_keyring)
+               return ERR_PTR(-EPERM);
+       
        user = key_user_lookup(current_fsuid());
        if (!user)
                return ERR_PTR(-ENOMEM);