From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 98AF451FCB1 for ; Mon, 7 Sep 2026 16:43:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788799391; cv=none; b=p/EtCRwyoOtjaWb1NuM/8lg+aT8OSH0XuBM0IUDaSIq8I0LK8iF6ymgi1xvYDLQF9sU6f+1YXwD4QkPg+PHiecExbY7+F+GFdqhZt8GRuKShBb1jLSdpGJFSSLXjLuQdJocDror4QLhPXYotBA/cgQ2jpTngQOwSktGQ7WwTmyQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788799391; c=relaxed/simple; bh=2xoBQrYiLQhwyzzjlC/Rrs4JE7nEyMXez28Fj2eF4ag=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IiX8DpAjtVIvHltMT1V1NgAdqOTdm2bEmdgVs/183t4XkfheKnF14bzYzefSznFzBl4cbNwzs590+lmcUpS5TtbpcQpP+LNoQ89Ggzk38d/YYiMCWveqa9P2XU70zjkksLL45k1jHHx5/J68lgD3kRaPnJ69rQQBCsp8gnrOsgk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=n7Tw5X7w; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="n7Tw5X7w" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9C05A1F00A3D; Mon, 7 Sep 2026 16:43:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788799390; bh=Fp1WUkxnhvJ5IR2eKQ3SMHt49du3trxxPvYQkmiNNK8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=n7Tw5X7wmPClS1PfidWlMSSGzwE56Vyb+K07OW9TKFGgJ/1QxvCFZoKgfDEo4IsKp uPIWzntXgAWLL4aYjmXCXMiCzDQ9zEN+mQWDVqzPIqoYMhnVduceRNdLEq5GbWglKm 3wYOGEQcyfNEC0iyBdCqh3WErPszKpUEgaW/42wJmPP7KbFvHFB/k8kuRoAaYQyExa BsJekbPdn/amcdakWif/SD0mswbdTyZxn7YKG1MzCx/dMhvX6zof29YelMhynlQ+Yf jADdEkNMyKYC+WvGrt/bNz9WDlU8EM78l7YYkczXS4yQqEbsizmeYBNCrP6+T1obHs Gqwi/u4rn4gtw== From: Will Deacon To: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, Will Deacon , Arnd Bergmann , Ard Biesheuvel , Ada Couprie Diaz , David Hildenbrand , Catalin Marinas , Vladimir Murzin , Mark Rutland , Mostafa Saleh , Lorenzo Stoakes , Oliver Upton , Linus Walleij , Marc Zyngier Subject: [PATCH 03/21] arm64: stackprotector: Temporarily disable per-task stackprotector Date: Mon, 7 Sep 2026 17:42:28 +0100 Message-ID: <20260907164247.17223-4-will@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260907164247.17223-1-will@kernel.org> References: <20260907164247.17223-1-will@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Per-task stackprotector relies on telling the compiler about the system register used to hold a pointer to the current task. As we're about to change that around, temporarily disable per-task stackprotector for now. Cc: Mark Rutland Signed-off-by: Will Deacon --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index b5a51b0ef944..b8270b301809 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -2455,6 +2455,7 @@ config CC_HAVE_STACKPROTECTOR_SYSREG config STACKPROTECTOR_PER_TASK def_bool y depends on STACKPROTECTOR && CC_HAVE_STACKPROTECTOR_SYSREG + depends on BROKEN config UNWIND_PATCH_PAC_INTO_SCS bool "Enable shadow call stack dynamically using code patching" -- 2.55.0.979.g7e5102b832-goog