This adds the module loading prefix "crypto-" to the template lookup
as well.
For example, attempting to load 'vfat(blowfish)' via AF_ALG now correctly
includes the "crypto-" prefix at every level, correctly rejecting "vfat":
net-pf-38
algif-hash
crypto-vfat(blowfish)
crypto-vfat(blowfish)-all
crypto-vfat
Reported-by: Mathias Krause <mini...@googlemail.com>
Signed-off-by: Kees Cook <keesc...@chromium.org>
---
crypto/algapi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/crypto/algapi.c b/crypto/algapi.c
index e8d3a7dca8c4..71a8143e23b1 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -509,8 +509,8 @@ 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), "%s",
- name);
+ return try_then_request_module(__crypto_lookup_template(name),
+ "crypto-%s", name);
}
EXPORT_SYMBOL_GPL(crypto_lookup_template);
--
1.9.1
--
Kees Cook
Chrome OS Security
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