From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EB271C4332F for ; Fri, 18 Nov 2022 19:46:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240445AbiKRTqd (ORCPT ); Fri, 18 Nov 2022 14:46:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235483AbiKRTq3 (ORCPT ); Fri, 18 Nov 2022 14:46:29 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C54AD8D482 for ; Fri, 18 Nov 2022 11:46:26 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 7824AB824F8 for ; Fri, 18 Nov 2022 19:46:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 14DC5C433D6; Fri, 18 Nov 2022 19:46:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668800784; bh=pld3XDt3BvGRUOAeWpGABORV9PhFrHCg0jaaS0wG4JY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ctclds9W9ZQRSH26nNSD/4Ztv5PPT1NqhIwr7+W5kWizkj4yfFlpOdLRj/psyZVSt k+EdrCpXYDx6ZsoGWYiZJJPYkPTNlE8vpZnWLQNDKu9N4cYokXEmJpJYqIhQBthvpp a1qZb2p+czXkPd4h+pRTXsJ1nwPkPFoR5NTZngEaM0IfsQho2kDdlLWgFUO8OegUFo NAg6JV8PTfqFhiqQS7xMNHdoPfrl7OG/PZle6XjzX6pNk1vEL5a7QaxnwJa71XrrEn 709qI+aFBuclXf9C3g/x11nAaBanv8tiJU5QQh+mWfWSmNJKqzNhqJNbFS1KBS0VQ4 S5N9IJkjWE/BA== From: Eric Biggers To: linux-crypto@vger.kernel.org Cc: x86@kernel.org, linux-arm-kernel@lists.infradead.org, Sami Tolvanen , "Peter Zijlstra (Intel)" Subject: [PATCH v2 01/12] crypto: x86/aegis128 - fix possible crash with CFI enabled Date: Fri, 18 Nov 2022 11:44:10 -0800 Message-Id: <20221118194421.160414-2-ebiggers@kernel.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221118194421.160414-1-ebiggers@kernel.org> References: <20221118194421.160414-1-ebiggers@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org From: Eric Biggers crypto_aegis128_aesni_enc(), crypto_aegis128_aesni_enc_tail(), crypto_aegis128_aesni_dec(), and crypto_aegis128_aesni_dec_tail() 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 didn't happen to optimize out the indirect calls). Fixes: ccace936eec7 ("x86: Add types to indirectly called assembly functions") Acked-by: Peter Zijlstra (Intel) Reviewed-by: Sami Tolvanen Signed-off-by: Eric Biggers --- arch/x86/crypto/aegis128-aesni-asm.S | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S index b48ddebb47489..cdf3215ec272c 100644 --- a/arch/x86/crypto/aegis128-aesni-asm.S +++ b/arch/x86/crypto/aegis128-aesni-asm.S @@ -7,6 +7,7 @@ */ #include +#include #include #define STATE0 %xmm0 @@ -402,7 +403,7 @@ SYM_FUNC_END(crypto_aegis128_aesni_ad) * void crypto_aegis128_aesni_enc(void *state, unsigned int length, * const void *src, void *dst); */ -SYM_FUNC_START(crypto_aegis128_aesni_enc) +SYM_TYPED_FUNC_START(crypto_aegis128_aesni_enc) FRAME_BEGIN cmp $0x10, LEN @@ -499,7 +500,7 @@ SYM_FUNC_END(crypto_aegis128_aesni_enc) * void crypto_aegis128_aesni_enc_tail(void *state, unsigned int length, * const void *src, void *dst); */ -SYM_FUNC_START(crypto_aegis128_aesni_enc_tail) +SYM_TYPED_FUNC_START(crypto_aegis128_aesni_enc_tail) FRAME_BEGIN /* load the state: */ @@ -556,7 +557,7 @@ SYM_FUNC_END(crypto_aegis128_aesni_enc_tail) * void crypto_aegis128_aesni_dec(void *state, unsigned int length, * const void *src, void *dst); */ -SYM_FUNC_START(crypto_aegis128_aesni_dec) +SYM_TYPED_FUNC_START(crypto_aegis128_aesni_dec) FRAME_BEGIN cmp $0x10, LEN @@ -653,7 +654,7 @@ SYM_FUNC_END(crypto_aegis128_aesni_dec) * void crypto_aegis128_aesni_dec_tail(void *state, unsigned int length, * const void *src, void *dst); */ -SYM_FUNC_START(crypto_aegis128_aesni_dec_tail) +SYM_TYPED_FUNC_START(crypto_aegis128_aesni_dec_tail) FRAME_BEGIN /* load the state: */ -- 2.38.1