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Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for 4.10.1.

From Herbert Xu <herbert@gondor.apana.org.au>
Newsgroups linux.kernel
Subject Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for 4.10.1.
Date 2017-03-14 10:30 +0100
Message-ID <tkQWe-6sZ-5@gated-at.bofh.it> (permalink)
References (5 earlier) <tj4gW-4pf-13@gated-at.bofh.it> <tjx9f-7F0-1@gated-at.bofh.it> <tjAA9-1nE-1@gated-at.bofh.it> <tkhc5-5PI-9@gated-at.bofh.it> <tkBDQ-3Ed-3@gated-at.bofh.it>
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On Mon, Mar 13, 2017 at 07:06:01PM +0200, Krzysztof Kozlowski wrote:
> 
> I bisected this to commit f1c131b45410 ("crypto: xts - Convert to
> skcipher"). The s5p-sss driver stays the same... but the xts changes and
> as a result we have a NULL pointer dereference (actually of value
> 00000004):
> [   18.930195] Unable to handle kernel NULL pointer dereference at virtual address 00000004
> ...
> [   18.972325] [<c0313c98>] (post_crypt) from [<c031408c>] (decrypt_done+0x4c/0x54)
> [   18.972343] [<c031408c>] (decrypt_done) from [<c056309c>] (s5p_aes_interrupt+0x1bc/0x208)
> [   18.972360] [<c056309c>] (s5p_aes_interrupt) from [<c0164930>] (irq_thread_fn+0x1c/0x54)

Well that's hardly surprising since xts prior to this commit used
simple AES as opposed to ecb(aes) so it couldn't have triggered
this bug.

> Any hints?

I'll have a look when I have time but no promises.

Cheers,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for 4.10.1. Nathan Royce <nroycea+kernel@gmail.com> - 2017-03-06 17:30 +0100
  Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for  4.10.1. Krzysztof Kozlowski <krzk@kernel.org> - 2017-03-06 19:50 +0100
    Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for  4.10.1. Krzysztof Kozlowski <krzk@kernel.org> - 2017-03-08 18:50 +0100
      Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for  4.10.1. Krzysztof Kozlowski <krzk@kernel.org> - 2017-03-08 23:30 +0100
        Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for 4.10.1. Nathan Royce <nroycea+kernel@gmail.com> - 2017-03-09 12:20 +0100
          Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for  4.10.1. Krzysztof Kozlowski <krzk@kernel.org> - 2017-03-10 19:10 +0100
            Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for  4.10.1. Krzysztof Kozlowski <krzk@kernel.org> - 2017-03-12 20:20 +0100
              Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for  4.10.1. Krzysztof Kozlowski <krzk@kernel.org> - 2017-03-13 18:10 +0100
                Re: XTS Crypto Not Found In /proc/crypto Even After Compiled for  4.10.1. Herbert Xu <herbert@gondor.apana.org.au> - 2017-03-14 10:30 +0100

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