From: Kees Cook <keescook@xxxxxxxxxxxx>
Subject: 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@xxxxxxxxxxxx>
Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
crypto/algapi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN crypto/algapi.c~crypto-sanitize-argument-for-format-string crypto/algapi.c
--- a/crypto/algapi.c~crypto-sanitize-argument-for-format-string
+++ a/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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