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 D2C963AEB5C; Sun, 2 Aug 2026 12:12:56 +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=1785672780; cv=none; b=eKvhvRBizH0yK4gOJJPwuNGcDpfHMC1tXGRpC9EaWDuXjMQ6NoFlv2k6gfB1Z9NyRm8IHAy1B1aIE9023vqENN/5h6ggJW8cdYSsp8xT5U5V9ecNRaQqHRoykpqgRaQo6TMrlQ1+upqjE/HHQ5dOn3ieWmccNDeJbKDBDs4iBFg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785672780; c=relaxed/simple; bh=ry8K+veviXW78GrPnTOTHILt5GCYymbTUVv2y8NSu5o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Dzv5xu9bE6JK4pqnRiBMEvN4lT+Q3bbQW+AeTPhAc4McMIBHeCcCE9+MxwL1w5kaBfxiD4314BtSvc0UhCqUYZA3ukOa2g21SMA7UJ/FwHWe+4rMGDyvE++B9nfOP5LP5NXR4mItzYr5jP9df9xW9NVvDMsHxdK0Ba24kdaf7aI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fts/H2R4; 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="fts/H2R4" 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit 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