Re: [PATCH] crypto: chacha20_4block_xor_ssse3: Align stack pointer to 64 bytes

[PATCH] crypto: chacha20_4block_xor_ssse3: Align stack pointer to 64 bytes · Eli Cooper <hidden> · 2016-01-21
Re: [PATCH] crypto: chacha20_4block_xor_ssse3: Align stack pointer to 64 bytes · Martin Willi <hidden> · 2016-01-22
Re: [PATCH] crypto: chacha20_4block_xor_ssse3: Align stack pointer to 64 bytes · Herbert Xu <herbert@gondor.apana.org.au> · 2016-01-25
Re: [PATCH] crypto: chacha20_4block_xor_ssse3: Align stack pointer to 64 bytes · "Jason A. Donenfeld" <Jason@zx2c4.com> · 2016-01-27
Re: [PATCH] crypto: chacha20_4block_xor_ssse3: Align stack pointer to 64 bytes · Herbert Xu <herbert@gondor.apana.org.au> · 2016-01-27

From: Martin Willi <hidden>
Date: 2016-01-22 08:05:08

Hi Eli,

This aligns the stack pointer in chacha20_4block_xor_ssse3 to 64 bytes.
Fixes general protection faults and potential kernel panics.

I assumed 16-byte alignment according to the System V AMD64 ABI, but
this is obviously not true with -mpreferred-stack-boundary=3. The AVX2
version seems to be ok, so is Poly1305.

Acked-by: Martin Willi <redacted>

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