From nobody Sun Feb 8 23:03:52 2026 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 C1291337686; Wed, 7 Jan 2026 14:20:40 +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=1767795640; cv=none; b=aFSnDuFCG32ptQvX9ly945G0HZl7h9TsnwMZvrMiuKXkLiPlu8aR8+x1gQLnoZA5Shvx70oNZzo8+0O69UnL/+xv89WC/ZqxwXmmJsPSeC/6TvJotzfWc6tzbVfU9rRd4WfOX4lOzEOiYiu/snRcwDXKFLMsQdfsCsnu4b4gl4w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767795640; c=relaxed/simple; bh=kEkvQ9NQX8PYeQ1rYCmj8d2YBAwnJXpHvKctygKYYLE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=RlKZHnTKjHDQ3k8wjwphXY+zubDxqADSjAN7UzTl2wFC139KSX/HzQleaoOvGbXp0nv/U6KhJLs2hyl3LAtMw++WwD5geaxaQR0alDMNPG60Gmk/G9+8PuIED8mfmPI3uSVSp9m8evQe/KLcpip8NRLZCgSOpbkTM9jshQY0GzA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tMaMO7WG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tMaMO7WG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E4211C19421; Wed, 7 Jan 2026 14:20:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767795640; bh=kEkvQ9NQX8PYeQ1rYCmj8d2YBAwnJXpHvKctygKYYLE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=tMaMO7WG6JQhtw/hjE2heFOQVqZg8m9u5mOJk8GHSYuYqtLXGFT+QUckJbHV9GTXF l1+IH9jE2kxotMlq1CFMLvL2S25sDzp3RZt+YMmAXgRz4TcNIKLlJBXPQoVjUwJHtq dfdr8JNozaLjMuivAvuKpg4DY14hkbMXeB88vuHJB1RiJqGCCfnWy2u9D6Gc7NYj21 2Pf2No971PU+wx5L4w1tPzsWIx9TS0cZRGxFcdIxPakokvkm5+I5PGCqDoaaq1bFW9 XuVxHaNAqOkASACOpIW7FDhKCIjqatsbuzvfse+v6YsX4Qp8Ixx9gfrQyPxG34gewd 63LbQMsYkLMTQ== From: Jeff Layton Date: Wed, 07 Jan 2026 09:20:11 -0500 Subject: [PATCH 3/6] 9p: don't allow delegations to be set on directories 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: quoted-printable Message-Id: <20260107-setlease-6-19-v1-3-85f034abcc57@kernel.org> References: <20260107-setlease-6-19-v1-0-85f034abcc57@kernel.org> In-Reply-To: <20260107-setlease-6-19-v1-0-85f034abcc57@kernel.org> To: Christian Brauner , Al Viro , Jan Kara , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Tom Talpey , Bharath SM , Trond Myklebust , Anna Schumaker , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , Andreas Gruenbacher , Xiubo Li , Ilya Dryomov , Hans de Goede , NeilBrown Cc: Christoph Hellwig , linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, v9fs@lists.linux.dev, gfs2@lists.linux.dev, ceph-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Jeff Layton X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1032; i=jlayton@kernel.org; h=from:subject:message-id; bh=kEkvQ9NQX8PYeQ1rYCmj8d2YBAwnJXpHvKctygKYYLE=; b=owEBbQKS/ZANAwAKAQAOaEEZVoIVAcsmYgBpXmusFABXCuzBzy1mQmp7JWrenTQAfrgA1JQp8 OqxhqtVIYKJAjMEAAEKAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCaV5rrAAKCRAADmhBGVaC FTfjD/wNogu8cq8DRl9tjq+zSkAMYAM++zEaDaPvKxwfExuQJ4iUCAvP+ZMG14K799qKk6rnzyD GGcpO7zJtgg5d3Ae2B/4I8tXitDrgsiiBUsisxdmWzkG3QT344FwzDRaLCpAndlEjvew4rc6jwg 5hog3xLPo+RJv9f9D9Q+YiHP6G0hkn3uI1P+Kh2MAErNM1w2F0EjOGKoFbW+WWCkGVTYo6hiE6Y VWXWVY359KrHGq9TYZAPJO3kBWGxwqtvTkV8OA3nAiP2a4trCbFxgi/Cn1lsfF2vrl7HuEGXvlI J9JEOD2ZUy3l9xajY89qg6Us3nS/E6S/9BL3AR6YTslqBc3g4TWd7u8E4OXDajuyZNS5WPfbtES cGl76WgXitBQ6ScvKAz7I3/op6aeqZnwl+vWGPGkku5BEMP/9u/Pns/4BW38JGmd9rJv6fgpw75 l4noDgGaBUZjPbvhtpCNu266GcIuZjREGxHbT42mbJcQCf9BhH4QjebrGYFc4XiTLtiL12sG2Lb wiH2A/Fkb2GgRXQnVd2oTcEpx0aPAu09Mqn0E3yNJzghCU3QTKYyFy/ILBaVyuvOujsdc39z/Pl UGcD39cVDUmjcL4fYoti+ZQL6IKnhUk7iTWzkzSor+aGy7ihb0B4sAOhHlGDXXsqeJuePcbfp/v ACInyCk/xwIXBGA== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 With the advent of directory leases, it's necessary to set the ->setlease() handler in directory file_operations to properly deny them. Fixes: e6d28ebc17eb ("filelock: push the S_ISREG check down to ->setlease h= andlers") Signed-off-by: Jeff Layton --- fs/9p/vfs_dir.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c index e0d34e4e9076e3b1a6c5ed07a3e009a50c9fa2a9..af7f72abbb76aaff934b80d4002= f32e3b0d17b6d 100644 --- a/fs/9p/vfs_dir.c +++ b/fs/9p/vfs_dir.c @@ -242,6 +242,7 @@ const struct file_operations v9fs_dir_operations =3D { .iterate_shared =3D v9fs_dir_readdir, .open =3D v9fs_file_open, .release =3D v9fs_dir_release, + .setlease =3D simple_nosetlease, }; =20 const struct file_operations v9fs_dir_operations_dotl =3D { @@ -251,4 +252,5 @@ const struct file_operations v9fs_dir_operations_dotl = =3D { .open =3D v9fs_file_open, .release =3D v9fs_dir_release, .fsync =3D v9fs_file_fsync_dotl, + .setlease =3D simple_nosetlease, }; --=20 2.52.0