crypto: prefix module autoloading with "crypto-"

This prefixes all crypto module loading with "crypto-" so we never run
the risk of exposing module auto-loading to userspace via a crypto API,
as demonstrated by Mathias Krause:

https://lkml.org/lkml/2013/3/4/70

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 2 insertions, 2 deletions

diff --git a/crypto/api.c b/crypto/api.c
index a2b39c5f3649..2a81e98a0021 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -216,11 +216,11 @@ struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask)
 
         alg = crypto_alg_lookup(name, type, mask);
         if (!alg) {
-                request_module("%s", name);
+                request_module("crypto-%s", name);
 
                 if (!((type ^ CRYPTO_ALG_NEED_FALLBACK) & mask &
                       CRYPTO_ALG_NEED_FALLBACK))
-                        request_module("%s-all", name);
+                        request_module("crypto-%s-all", name);
 
                 alg = crypto_alg_lookup(name, type, mask);
         }