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SubjectRe: general protection fault in crypto_chacha20_crypt
On Wed, Nov 29, 2017 at 01:24:38AM -0800, Eric Biggers wrote:
>
> The bug is that the skcipher_walk API doesn't set the IV for zero-length inputs,
> while some algorithms (e.g. ChaCha20) access the IV even if the input is
> zero-length. So it was dereferencing a pointer which came from uninitialized
> stack memory. I've sent out a fix:
>
> "crypto: skcipher - set walk.iv for zero-length inputs"
>

#syz fix: crypto: skcipher - set walk.iv for zero-length inputs

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