From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8E03D313546; Wed, 3 Dec 2025 16:07:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764778048; cv=none; b=Mp8HJ3ur/2StHnOzch4WwPsEyVai42HyJI5nEEL6nsxTL5XqMUQGojen6ihLG0KkW2e2UpId/AR13qQi3SnRpJH/0SWqxf/6RHrkeiHJZdysCu+noI6EUaWZEO0DA2Sv60eiZaiCPANNOYyWHkn9FFDlvcBZybyrUjGaHFfcu2c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764778048; c=relaxed/simple; bh=HUPccETqboeJN1+1LmMxli1KY7ZoEhxPdzq+8EkW+K8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fK+g/C1Tb8xowL9li3uC3pzyeULOOwx1218Q9/g7VvlCjjK1PorirWNVkGZ+Wh4BmX+Ba1MlY6tOC0lq6fixjO3AtjAMZpGN1DoMPmJYDCCzX+6g/r0Jbk2Otm6MTJkRj6KFRM0xPc6bp+0KOLUS+K/29U600bgnZD4lHWOaS5s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=KNbYsT2s; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="KNbYsT2s" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 197D0C4CEF5; Wed, 3 Dec 2025 16:07:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1764778048; bh=HUPccETqboeJN1+1LmMxli1KY7ZoEhxPdzq+8EkW+K8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KNbYsT2sq42jI7kEZYe7CWYFTKFiifnLIe+cBcx/5OlhVgIUNnPun6PMuvcG6wwH1 /yDvzddohZK1RrNN7FGboSkGCJVySvgK2F+7QlOWVBCiRxreO/sIAuKaEin5Ob5LcY FiF7Fl+SnyT1aiRZbQ3eBTMJociExkcAj9itXyRo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nathan Chancellor , Ard Biesheuvel , Eric Biggers Subject: [PATCH 5.15 227/392] lib/crypto: curve25519-hacl64: Fix older clang KASAN workaround for GCC Date: Wed, 3 Dec 2025 16:26:17 +0100 Message-ID: <20251203152422.536149420@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251203152414.082328008@linuxfoundation.org> References: <20251203152414.082328008@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nathan Chancellor commit 2b81082ad37cc3f28355fb73a6a69b91ff7dbf20 upstream. Commit 2f13daee2a72 ("lib/crypto/curve25519-hacl64: Disable KASAN with clang-17 and older") inadvertently disabled KASAN in curve25519-hacl64.o for GCC unconditionally because clang-min-version will always evaluate to nothing for GCC. Add a check for CONFIG_CC_IS_CLANG to avoid applying the workaround for GCC, which is only needed for clang-17 and older. Cc: stable@vger.kernel.org Fixes: 2f13daee2a72 ("lib/crypto/curve25519-hacl64: Disable KASAN with clang-17 and older") Signed-off-by: Nathan Chancellor Acked-by: Ard Biesheuvel Link: https://lore.kernel.org/r/20251103-curve25519-hacl64-fix-kasan-workaround-v2-1-ab581cbd8035@kernel.org Signed-off-by: Eric Biggers Signed-off-by: Greg Kroah-Hartman --- lib/crypto/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/lib/crypto/Makefile +++ b/lib/crypto/Makefile @@ -23,7 +23,7 @@ libcurve25519-generic-y := curve25519 libcurve25519-generic-$(CONFIG_ARCH_SUPPORTS_INT128) := curve25519-hacl64.o libcurve25519-generic-y += curve25519-generic.o # clang versions prior to 18 may blow out the stack with KASAN -ifeq ($(call clang-min-version, 180000),) +ifeq ($(CONFIG_CC_IS_CLANG)_$(call clang-min-version, 180000),y_) KASAN_SANITIZE_curve25519-hacl64.o := n endif