3.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Mathias Krause <mini...@googlemail.com> commit 7c8d51848a88aafdb68f42b6b650c83485ea2f84 upstream. The 32 bit variant of cbc(aes) decrypt is using instructions requiring 128 bit aligned memory locations but fails to ensure this constraint in the code. Fix this by loading the data into intermediate registers with load unaligned instructions. This fixes reported general protection faults related to aesni. References: https://bugzilla.kernel.org/show_bug.cgi?id=43223 Reported-by: Daniel <gark...@mailueberfall.de> Signed-off-by: Mathias Krause <mini...@googlemail.com> Signed-off-by: Herbert Xu <herb...@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- arch/x86/crypto/aesni-intel_asm.S | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/arch/x86/crypto/aesni-intel_asm.S +++ b/arch/x86/crypto/aesni-intel_asm.S @@ -2460,10 +2460,12 @@ ENTRY(aesni_cbc_dec) pxor IN3, STATE4 movaps IN4, IV #else - pxor (INP), STATE2 - pxor 0x10(INP), STATE3 pxor IN1, STATE4 movaps IN2, IV + movups (INP), IN1 + pxor IN1, STATE2 + movups 0x10(INP), IN2 + pxor IN2, STATE3 #endif movups STATE1, (OUTP) movups STATE2, 0x10(OUTP) -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
