Re: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs

From	David Howells <dhowells@redhat.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs
Date	2016-12-13 21:20 +0100
Message-ID	<sO1Im-5Bt-9@gated-at.bofh.it> (permalink)
References	(2 earlier) <sNFRv-yr-15@gated-at.bofh.it> <sNUGS-1eI-13@gated-at.bofh.it> <sNYr7-3vi-15@gated-at.bofh.it> <sNYr7-3vi-13@gated-at.bofh.it> <sNYKt-3R9-13@gated-at.bofh.it>
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Andy Lutomirski <luto@amacapital.net> wrote:

> I don't know whether you're right, but that sounds a bit silly to me.
> This is a *tiny* amount of memory.

Assuming a 1MiB kernel image in 4K pages, that gets you back a couple of pages
I think - useful if you've only got a few MiB of RAM.

David

Thread

[PATCH] wusbcore: Fix one more crypto-on-the-stack bug Andy Lutomirski <luto@kernel.org> - 2016-12-12 22:00 +0100
  [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs Andy Lutomirski <luto@kernel.org> - 2016-12-12 22:00 +0100
    Re: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs David Howells <dhowells@redhat.com> - 2016-12-12 23:30 +0100
      Re: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs Andy Lutomirski <luto@kernel.org> - 2016-12-13 01:40 +0100
    RE: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs David Laight <David.Laight@ACULAB.COM> - 2016-12-13 13:50 +0100
      Re: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs David Howells <dhowells@redhat.com> - 2016-12-13 17:50 +0100
        Re: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs Andy Lutomirski <luto@amacapital.net> - 2016-12-13 18:10 +0100
          Re: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs David Howells <dhowells@redhat.com> - 2016-12-13 21:20 +0100
      Re: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs Andy Lutomirski <luto@amacapital.net> - 2016-12-13 17:50 +0100
        Re: [PATCH] keys/encrypted: Fix two crypto-on-the-stack bugs Joerg Roedel <joro@8bytes.org> - 2016-12-14 18:00 +0100
  [PATCH] crypto: Make a few drivers depend on !VMAP_STACK Andy Lutomirski <luto@kernel.org> - 2016-12-12 22:00 +0100
    Re: [PATCH] crypto: Make a few drivers depend on !VMAP_STACK Herbert Xu <herbert@gondor.apana.org.au> - 2016-12-13 04:50 +0100
  [PATCH] orinoco: Use shash instead of ahash for MIC calculations Andy Lutomirski <luto@kernel.org> - 2016-12-12 22:00 +0100
    Re: [PATCH] orinoco: Use shash instead of ahash for MIC calculations Eric Biggers <ebiggers3@gmail.com> - 2016-12-13 09:00 +0100
    Re: [PATCH] orinoco: Use shash instead of ahash for MIC calculations Kalle Valo <kvalo@codeaurora.org> - 2016-12-13 12:40 +0100
      Re: [PATCH] orinoco: Use shash instead of ahash for MIC calculations Andy Lutomirski <luto@amacapital.net> - 2016-12-13 17:50 +0100
        Re: [PATCH] orinoco: Use shash instead of ahash for MIC calculations Kalle Valo <kvalo@codeaurora.org> - 2016-12-13 18:10 +0100
    Re: orinoco: Use shash instead of ahash for MIC calculations Kalle Valo <kvalo@codeaurora.org> - 2016-12-30 12:40 +0100
      Re: orinoco: Use shash instead of ahash for MIC calculations Kalle Valo <kvalo@codeaurora.org> - 2016-12-30 13:10 +0100
        Re: orinoco: Use shash instead of ahash for MIC calculations Kalle Valo <kvalo@adurom.com> - 2016-12-30 13:50 +0100
  Re: [PATCH] wusbcore: Fix one more crypto-on-the-stack bug Greg KH <gregkh@linuxfoundation.org> - 2016-12-12 22:50 +0100
    Re: [PATCH] wusbcore: Fix one more crypto-on-the-stack bug Andy Lutomirski <luto@amacapital.net> - 2016-12-13 01:00 +0100

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