Re: [PATCH] crypto: testmgr - test in-place en/decryption with two sglists

From: Herbert Xu
Date: Fri Apr 08 2022 - 04:31:58 EST


Eric Biggers <ebiggers@xxxxxxxxxx> wrote:
> From: Eric Biggers <ebiggers@xxxxxxxxxx>
>
> As was established in the thread
> https://lore.kernel.org/linux-crypto/20220223080400.139367-1-gilad@xxxxxxxxxxxxx/T/#u,
> many crypto API users doing in-place en/decryption don't use the same
> scatterlist pointers for the source and destination, but rather use
> separate scatterlists that point to the same memory. This case isn't
> tested by the self-tests, resulting in bugs.
>
> This is the natural usage of the crypto API in some cases, so requiring
> API users to avoid this usage is not reasonable.
>
> Therefore, update the self-tests to start testing this case.
>
> Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
> ---
> crypto/testmgr.c | 75 ++++++++++++++++++++++++++++++++++++++++--------
> 1 file changed, 63 insertions(+), 12 deletions(-)

Patch applied. Thanks.
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt