[PATCH 0/1] crypto: Undefined behaviour in crypto_aes_expand_key

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The following patch applies to the current head of torvalds/linux-2.6.git.
However, due to the relatively stable nature of the only file patched, it
should apply anywhere. Apologies if there are any mail mangling issues, 
they aren't unheard of, alas, and I will resend from home if need be. 

The nitty gritty details of the undefined behaviour can be found in the C
standards documents sections:
n869.txt (C89) - 3.3.2.1 Array subscripting, and 3.3.6 Additive operators
n1256.pdf (C99) - 6.5.2.1 Array subscripting, and 6.5.6 Additive operators

I trust that the nature of the patch should be self-evident.

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