From 11ade08efbfbc36dbf3571f1026946269950bc40 Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Sat, 8 Jan 2022 20:56:19 +0200 Subject: Add straight-line speculation hardening for amd64 and i386 assembly * cipher/asm-common-amd64.h (ret_spec_stop): New. * cipher/arcfour-amd64.S: Use 'ret_spec_stop' for 'ret' instruction. * cipher/blake2b-amd64-avx2.S: Likewise. * cipher/blake2s-amd64-avx.S: Likewise. * cipher/blowfish-amd64.S: Likewise. * cipher/camellia-aesni-avx-amd64.S: Likewise. * cipher/camellia-aesni-avx2-amd64.h: Likewise. * cipher/cast5-amd64.S: Likewise. * cipher/chacha20-amd64-avx2.S: Likewise. * cipher/chacha20-amd64-ssse3.S: Likewise. * cipher/des-amd64.S: Likewise. * cipher/rijndael-aarch64.S: Likewise. * cipher/rijndael-amd64.S: Likewise. * cipher/rijndael-ssse3-amd64-asm.S: Likewise. * cipher/rijndael-vaes-avx2-amd64.S: Likewise. * cipher/salsa20-amd64.S: Likewise. * cipher/serpent-avx2-amd64.S: Likewise. * cipher/serpent-sse2-amd64.S: Likewise. * cipher/sha1-avx-amd64.S: Likewise. * cipher/sha1-avx-bmi2-amd64.S: Likewise. * cipher/sha1-avx2-bmi2-amd64.S: Likewise. * cipher/sha1-ssse3-amd64.S: Likewise. * cipher/sha256-avx-amd64.S: Likewise. * cipher/sha256-avx2-bmi2-amd64.S: Likewise. * cipher/sha256-ssse3-amd64.S: Likewise. * cipher/sha512-avx-amd64.S: Likewise. * cipher/sha512-avx2-bmi2-amd64.S: Likewise. * cipher/sha512-ssse3-amd64.S: Likewise. * cipher/sm3-avx-bmi2-amd64.S: Likewise. * cipher/sm4-aesni-avx-amd64.S: Likewise. * cipher/sm4-aesni-avx2-amd64.S: Likewise. * cipher/twofish-amd64.S: Likewise. * cipher/twofish-avx2-amd64.S: Likewise. * cipher/whirlpool-sse2-amd64.S: Likewise. * mpi/amd64/func_abi.h (CFI_*): Remove, include from "asm-common-amd64.h" instead. (FUNC_EXIT): Use 'ret_spec_stop' for 'ret' instruction. * mpi/asm-common-amd64.h: New. * mpi/i386/mpih-add1.S: Use 'ret_spec_stop' for 'ret' instruction. * mpi/i386/mpih-lshift.S: Likewise. * mpi/i386/mpih-mul1.S: Likewise. * mpi/i386/mpih-mul2.S: Likewise. * mpi/i386/mpih-mul3.S: Likewise. * mpi/i386/mpih-rshift.S: Likewise. * mpi/i386/mpih-sub1.S: Likewise. * mpi/i386/syntax.h (ret_spec_stop): New. -- Signed-off-by: Jussi Kivilinna --- cipher/sha1-avx2-bmi2-amd64.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'cipher/sha1-avx2-bmi2-amd64.S') diff --git a/cipher/sha1-avx2-bmi2-amd64.S b/cipher/sha1-avx2-bmi2-amd64.S index 93863230..ed52761b 100644 --- a/cipher/sha1-avx2-bmi2-amd64.S +++ b/cipher/sha1-avx2-bmi2-amd64.S @@ -564,7 +564,7 @@ _gcry_sha1_transform_amd64_avx2_bmi2: /* stack already burned */ xorl %eax, %eax; - ret; + ret_spec_stop; CFI_ENDPROC(); ELF(.size _gcry_sha1_transform_amd64_avx2_bmi2, .-_gcry_sha1_transform_amd64_avx2_bmi2;) -- cgit v1.2.1