From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3DB95606A335 for ; Thu, 5 Nov 2026 20:29:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=2yD3Zg5c; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=VVy9ydzD DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Date: Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Cc:To:Subject: From:Message-ID:MIME-Version:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=l5G/lSqezWnwCKCStpatk32BvJD6IXrDlHThvqht2Tc=; b=2yD3Zg5clm95/bjvtTEqPk7Rf/ 2StitFstzuB8Sz4EhySleXhLLr+DkIzQ//5+v37RYloNWpA9VmDLUvsuzgg7j0gZOvSF3QLfnnhrt Fyf6dOS2eLXblnwB5fEqWlUdpbLaTJUzZZ4RHH1T2s58wFgKmfMeD4GMpBxyc2njeZ7ZHMyiM5QJL pXyn9SWce0tahzSmuDu5DrT3x7LidzRjDJ3PSkx40od3/TxU//dS8JRK5DCdPuJGm/pB/q5XwROsm 3rjfDV72Y9SNIf7FDCxhoME0gLPZr4oiIR5XsOrVjHqK+hGQnJb6+AQuyAAdrvDSFGuWuB2tfhyJ8 THcO8KUA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xP3Ax-0000000AKsE-2XBA; Thu, 05 Nov 2026 19:31:07 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xP39J-0000000AKIc-0RWa for kexec@lists.infradead.org; Thu, 05 Nov 2026 19:29:28 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 8C033601C4; Thu, 5 Nov 2026 19:29:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD8691F00A02; Thu, 5 Nov 2026 19:29:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793906964; bh=l5G/lSqezWnwCKCStpatk32BvJD6IXrDlHThvqht2Tc=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=VVy9ydzDdwrK5cUkSQY+dtAoabFVfA9e0V3qgpjVjrIB5KvMO1MvQGDUHk5rAvgfm iSf6w+1kKcvdBAFR8ELGlwwFEK1XZJXOrXKCPvRouxy2Jazs+nmQAJSesB401a9CCa vxio34XgVPMayf8Fmf2wRqb4Hs5BmvdwkdXQYrWsL8VIX0WNnzZbN65SIXxRDOYRkF eSdSep7Up4ys5dzeLjGW5O3+D7EGEYwGaI66O+jjQoRyelrpDYdY1cW3+4VkosJ21x VBLkNWVbLXjLlwjMd0uLQ3706fcKWPjDKmaSPAZcoVtTTzHDmgl+ieo3UPtj39/IgW 0E/kdo3j/YNww== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH RESEND v2 17/51] s390/dasd: don't look in front of the buffer on an empty write To: "Christian Brauner" Cc: "Linus Torvalds" , "Jann Horn" , "Josef Bacik" , "Chris Mason" , "Jeff Layton" , NeilBrown , "Eric Dumazet" , "Thomas Gleixner" , "Al Viro" , "Jonathan Corbet" , "Christoph Hellwig" , "Greg Kroah-Hartman" , "Joel Granados" , "Kees Cook" , "Jan Kara" , "Jan Kara" , linux-s390@vger.kernel.org, coreteam@netfilter.org, kexec@lists.infradead.org, linux-pci@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-usb@vger.kernel.org, samba-technical@lists.samba.org, linux-m68k@lists.linux-m68k.org, linux-serial@vger.kernel.org, "Takashi Iwai" , linux-ext4@vger.kernel.org, "Chuck Lever" , tytso@mit.edu, "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20261104-work-procfs-bugfixes-v2-17-021c84d852e0@kernel.org> References: <20261104-work-procfs-bugfixes-v2-0-021c84d852e0@kernel.org> <20261104-work-procfs-bugfixes-v2-17-021c84d852e0@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Thu, 05 Nov 2026 19:29:22 +0000 X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sashiko-reviews@lists.linux.dev Sender: "kexec" X-Spam-Status: No, score=-10.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 X-Archived-By: > dasd_get_user_string() strips a trailing newline by looking at the last > byte that was written. For an empty write that's the byte in front of > the buffer it just allocated. Only look if something was written. >=20 > Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") > Cc: stable@vger.kernel.org > Signed-off-by: Christian Brauner (Amutable) Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261104-work-procf= s-bugfixes-v2-0-021c84d852e0@kernel.org?part=3D17