Date: Sun, 11 Dec 2016 11:13:55 -0800 From: Andy Lutomirski <luto@...capital.net> To: Eric Biggers <ebiggers3@...il.com> Cc: linux-crypto@...r.kernel.org, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-mm@...ck.org" <linux-mm@...ck.org>, "kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>, Herbert Xu <herbert@...dor.apana.org.au>, Andrew Lutomirski <luto@...nel.org>, Stephan Mueller <smueller@...onox.de> Subject: Re: Remaining crypto API regressions with CONFIG_VMAP_STACK On Fri, Dec 9, 2016 at 3:08 PM, Eric Biggers <ebiggers3@...il.com> wrote: > In the 4.9 kernel, virtually-mapped stacks will be supported and enabled by > default on x86_64. This has been exposing a number of problems in which > on-stack buffers are being passed into the crypto API, which to support crypto > accelerators operates on 'struct page' rather than on virtual memory. > > fs/cifs/smbencrypt.c:96 This should use crypto_cipher_encrypt_one(), I think. --Andy
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