Commit b82ce244 authored by Herbert Xu's avatar Herbert Xu

crypto: sha1-ssse3 - Disable avx2

It has been reported that sha1-avx2 can cause page faults by reading
beyond the end of the input.  This patch disables it until it can be
fixed.

Cc: <stable@vger.kernel.org>
Fixes: 7c1da8d0 ("crypto: sha - SHA1 transform x86_64 AVX2")
Reported-by: default avatarJan Stancek <jstancek@redhat.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 035f901e
...@@ -201,7 +201,7 @@ asmlinkage void sha1_transform_avx2(u32 *digest, const char *data, ...@@ -201,7 +201,7 @@ asmlinkage void sha1_transform_avx2(u32 *digest, const char *data,
static bool avx2_usable(void) static bool avx2_usable(void)
{ {
if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2) if (false && avx_usable() && boot_cpu_has(X86_FEATURE_AVX2)
&& boot_cpu_has(X86_FEATURE_BMI1) && boot_cpu_has(X86_FEATURE_BMI1)
&& boot_cpu_has(X86_FEATURE_BMI2)) && boot_cpu_has(X86_FEATURE_BMI2))
return true; return true;
......
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