| commit | 6dae78106ac458bf51eac9b8080c8f84a16773ef | [log] [tgz] |
|---|---|---|
| author | Kees Cook <keescook@chromium.org> | Tue Aug 07 14:18:38 2018 -0700 |
| committer | Rishabh Bhatnagar <rishabhb@codeaurora.org> | Wed Nov 07 10:02:25 2018 -0800 |
| tree | 9f63e456a9e6b0ac5c0215ce47e8373139f70cf2 | |
| parent | 8a4085c29c0cb7696c0aa33d60b5f490906739cb [diff] |
crypto: hash - Remove VLA usage In the quest to remove all stack VLA usage from the kernel[1], this removes the VLAs in SHASH_DESC_ON_STACK (via crypto_shash_descsize()) by using the maximum allowable size (which is now more clearly captured in a macro), along with a few other cases. Similar limits are turned into macros as well. A review of existing sizes shows that SHA512_DIGEST_SIZE (64) is the largest digest size and that sizeof(struct sha3_state) (360) is the largest descriptor size. The corresponding maximums are reduced. [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com Change-Id: I5281cc251f49e9c7d9761f7ec7217dd08588c26d Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Git-Repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Git-Commit: b68a7ec1e9a3efac53ae26a1658a553825a2375c Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>