From: Eric Biggers Date: Mon, 27 Feb 2023 06:32:23 +0000 (-0800) Subject: crypto: arm64/aes-neonbs - fix crash with CFI enabled X-Git-Tag: v6.6.7~2762^2~103 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=47446d7cd42358ca7d7a544f2f7823db03f616ff;p=platform%2Fkernel%2Flinux-starfive.git crypto: arm64/aes-neonbs - fix crash with CFI enabled aesbs_ecb_encrypt(), aesbs_ecb_decrypt(), aesbs_xts_encrypt(), and aesbs_xts_decrypt() are called via indirect function calls. Therefore they need to use SYM_TYPED_FUNC_START instead of SYM_FUNC_START to cause their type hashes to be emitted when the kernel is built with CONFIG_CFI_CLANG=y. Otherwise, the code crashes with a CFI failure if the compiler doesn't happen to optimize out the indirect calls. Fixes: c50d32859e70 ("arm64: Add types to indirect called assembly functions") Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers Reviewed-by: Ard Biesheuvel Signed-off-by: Herbert Xu --- diff --git a/arch/arm64/crypto/aes-neonbs-core.S b/arch/arm64/crypto/aes-neonbs-core.S index 7278a37..baf4507 100644 --- a/arch/arm64/crypto/aes-neonbs-core.S +++ b/arch/arm64/crypto/aes-neonbs-core.S @@ -15,6 +15,7 @@ */ #include +#include #include .text @@ -620,12 +621,12 @@ SYM_FUNC_END(aesbs_decrypt8) .endm .align 4 -SYM_FUNC_START(aesbs_ecb_encrypt) +SYM_TYPED_FUNC_START(aesbs_ecb_encrypt) __ecb_crypt aesbs_encrypt8, v0, v1, v4, v6, v3, v7, v2, v5 SYM_FUNC_END(aesbs_ecb_encrypt) .align 4 -SYM_FUNC_START(aesbs_ecb_decrypt) +SYM_TYPED_FUNC_START(aesbs_ecb_decrypt) __ecb_crypt aesbs_decrypt8, v0, v1, v6, v4, v2, v7, v3, v5 SYM_FUNC_END(aesbs_ecb_decrypt) @@ -799,11 +800,11 @@ SYM_FUNC_END(__xts_crypt8) ret .endm -SYM_FUNC_START(aesbs_xts_encrypt) +SYM_TYPED_FUNC_START(aesbs_xts_encrypt) __xts_crypt aesbs_encrypt8, v0, v1, v4, v6, v3, v7, v2, v5 SYM_FUNC_END(aesbs_xts_encrypt) -SYM_FUNC_START(aesbs_xts_decrypt) +SYM_TYPED_FUNC_START(aesbs_xts_decrypt) __xts_crypt aesbs_decrypt8, v0, v1, v6, v4, v2, v7, v3, v5 SYM_FUNC_END(aesbs_xts_decrypt)