Re: [PATCH] crypto: aesni: add setkey for driver-gcm-aes-aesni
From: Herbert Xu
Date: Mon Jan 19 2015 - 22:17:19 EST
On Sun, Jan 18, 2015 at 11:56:03PM +0100, Stephan Mueller wrote:
> The cipher registered as __driver-gcm-aes-aesni is never intended
> to be used directly by any caller. Instead it is a service mechanism to
> rfc4106-gcm-aesni.
>
> The kernel crypto API unconditionally calls the registered setkey
> function. In case a caller erroneously uses __driver-gcm-aes-aesni a
> call to crypto_aead_setkey will cause a NULL pointer dereference without
> this patch.
>
> CC: Tadeusz Struk <tadeusz.struk@xxxxxxxxx>
> Signed-off-by: Stephan Mueller <smueller@xxxxxxxxxx>
Rather than adding a bogus setkey function, please fix this mess
properly by moving the top-level setkey function into the __driver
one where it should be. Compare with how we handle it in the
ablk_helper which is pretty much the same thing.
Thanks,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/