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authorKees Cook <keescook@chromium.org>2013-07-03 15:01:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:07:25 -0700
commit1c8fca1d92e14859159a82b8a380d220139b7344 (patch)
treefe9c17b832774f32823bbd5b1712ee686ccc21f6 /crypto
parentffc8b30866879ed9ba62bd0a86fecdbd51cd3d19 (diff)
downloadlinux-linaro-stable-1c8fca1d92e14859159a82b8a380d220139b7344.tar.gz
crypto: sanitize argument for format string
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> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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 6149a6e09643..7a1ae87f1683 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -495,7 +495,8 @@ 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);