Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [ 08/15] crypto: sanitize argument for format string | Date | Thu, 11 Jul 2013 15:19:38 -0700 |
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3.9-stable review patch. If anyone has any objections, please let me know.
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From: Kees Cook <keescook@chromium.org>
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- crypto/algapi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/crypto/algapi.c +++ b/crypto/algapi.c @@ -495,7 +495,8 @@ static struct crypto_template *__crypto_ 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);
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