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authorKees Cook <keescook@chromium.org>2013-07-03 15:01:15 -0700
committerBen Hutchings <ben@decadent.org.uk>2013-07-27 05:34:28 +0100
commit00bbe5df5c7cc4ddbd0e735b9056eec8f4b2ce0f (patch)
tree3100d66291ef10f7fa94dcbc7bfd877ec1c71a15 /crypto
parentb442223040adf969fd02124c29c856a06cf5649c (diff)
crypto: sanitize argument for format string
commit 1c8fca1d92e14859159a82b8a380d220139b7344 upstream. The template lookup interface does not provide a way to use format strings, so make sure that the interface cannot be abused accidentally. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/algapi.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/crypto/algapi.c b/crypto/algapi.c
index 54dd4e33b5d..dc9991f5ab5 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -477,7 +477,8 @@ static struct crypto_template *__crypto_lookup_template(const char *name)
struct crypto_template *crypto_lookup_template(const char *name)
{
- return try_then_request_module(__crypto_lookup_template(name), name);
+ return try_then_request_module(__crypto_lookup_template(name), "%s",
+ name);
}
EXPORT_SYMBOL_GPL(crypto_lookup_template);