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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CC69FC55162 for ; Sun, 2 Aug 2026 12:13:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0ButMBPMYnmY+Ls5CyIA3CamKNvK6o2HH6itw67GRi8=; b=r63MQB1P6VW3hrBk7/CNR8jCgf 3OUVlHAiDjWQ1Mel+58r6PjxfN9wLXbrhDcLhpx4gsDyacmZnkpnIiMU5vcOdB2UH2sndV5D7JkRT LBlI9YWeyFUyCQY0Nvvzr6GGSWFazItfDFbPekijGWfidugAqZ3o/nd0GGvJU6GYCV2LoVUF7ivK5 LWQAWDva3TogqkdEl3pJl8f0U2/wv6lX70ox9wUqlJVZdCRdVz0bl0Bja9lHW0HRpbRdPK6u81/s7 mm+FllAYbpMUbJCAxcwiI+j8W6416QdFZIx7Ie3hN/VP4bpOv+eumgi9tFmDexsSvDSzUtTRBYwlb vktjr5AQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wqV3r-0000000Fbdw-09KE; Sun, 02 Aug 2026 12:12:59 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wqV3p-0000000FbcL-0Kmy for linux-arm-kernel@lists.infradead.org; Sun, 02 Aug 2026 12:12:57 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 767F541709; Sun, 2 Aug 2026 12:12:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 294A31F000E9; Sun, 2 Aug 2026 12:12:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785672776; bh=0ButMBPMYnmY+Ls5CyIA3CamKNvK6o2HH6itw67GRi8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=fts/H2R4VzKIIDoPW5c3M+BH2MkX8SGM3HdVLebm302yY0ZDdu03fipvw54QazpXU X3QCWSNna9VBoyhCxB5UWo6yXvRZuB8UsZFEDv8Q+4icz6sCwbJ4UWmVKXS/U8DG2o 5qKVSYSUvYM2/R1A5WYz8fTavuL/479fcrUeJfLiPbhlc1/R7L9j7zOwFURSp0eOG7 XBrr0UirC/xrWgz+eCNS81yU+4PxPJQ0IJVrdaZ7SJ1rS5oQmbsLvJEAUjk3xR7/iS X7RXqDOyt44Bik82SlW1rE8zso3K25Jr51QX3TiMu9VeLhkFm4fNdB1XYm7KzFhS8m SDiUAv5D4adKQ== From: Will Deacon To: Catalin Marinas , Karl Mehltretter Cc: kernel-team@android.com, Will Deacon , Mark Rutland , Mark Brown , Oleg Nesterov , Shuah Khan , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] arm64/fpsimd: ptrace: Fix inactive SVE and SSVE regsets Date: Sun, 2 Aug 2026 13:12:24 +0100 Message-ID: <178566413306.4141663.7146790540592743319.b4-ty@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260729004255.15630-1-kmehltretter@gmail.com> References: <20260729004255.15630-1-kmehltretter@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 29 Jul 2026 02:42:54 +0200, Karl Mehltretter wrote: > sve_init_header_from_task() takes header as a pointer, so for the > inactive mode > > header->size = sizeof(header); > > stores 8 rather than sizeof(struct user_sve_header), which is 16. > Userspace sees an impossible size smaller than the header it > describes. > > [...] Applied selftest update to arm64 (for-next/selftests), thanks! [2/2] kselftest/arm64: fp-ptrace: Fix checks for inactive SVE and SSVE regsets https://git.kernel.org/arm64/c/bd290e7fc245 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev