From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794751940; b=UDIXWkIr9pIRoz0uNQTLs6zG013I/2JdTMX9blpyCH9UK5/MQD7Nwr8sk/3WGuoSGsKv S7TRi81I/mPlYiWf1MwVBP/UNuQwv/rKNOdWu0FDIebbx5Okm94wqNkNBrfUhnnSa9PMN QQcVBgGvqNKXJdT+ES3BldWnVjSUFL1gGW7hC+ks586CBQDvxmGwRxULnUWn0iWQjkqRB kS3mf8DpLgMPND59qUPxHBXHvIoiO/TXlIOumxqzlFJ2z8a5Yq74Khl7e2zUgP4Df+F2f Ybh8I5NEqzY99H0C2Bcha1U0LPqIbIpAboq0pt1K/DXIIjq9/Fe61H9bCfL5RuchxUw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794751940; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=PqTvsFh1n3PsgpBOBeO8vvJTpVAiC4pJspCQxkeW7c8=; b=k+3uqw9laSLzU7q6cObiwesTRq3m5tpf5kJQ1wvQ9neR2PB+LzdjVR65mcvOefkHXqmO pFHRUBx9wf0NvGP2xksqgE7Zi+Q3qAi+yBxZXIW1cfcmYEgdUdALhcnJUtAInNnv0dUTS 30wQlmykekllqiimwWmu1M8QywrNBUy3NU0v7S4bRKgodjQrOMYYrYb214KeJYddHXByd sdmSPd4McKdMrgXCzyVmEs7TdJiZ0SKKzp193iXNomHxqwAMI6duk3H9l2M8hB896i3y9 trv8qOXyEgz2cvUZlBhniaI2Ktuw1VKGLO0WIiawUdDG+/Trr/CXadhJiX4sQqhRIuw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=DT8U9KOL; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 88DE1606A31A for ; Sun, 15 Nov 2026 14:12:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=DT8U9KOL Received: by smtp.kernel.org (Postfix) with ESMTPSA id 46F971F000C4 for ; Sun, 15 Nov 2026 14:12:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794751940; bh=PqTvsFh1n3PsgpBOBeO8vvJTpVAiC4pJspCQxkeW7c8=; h=From:Subject:Reply-To:Cc:In-Reply-To:References:Date; b=DT8U9KOL7XCjUqtHQxOQtAlnZF0hqDkBbPFeXIJ/txU9U4a21oN7NCDIyrgTVsGK9 pzdyKku0D6OoudSpdiLzey7Jq5agOFHQ9ZfrkEvmd5XxA8nLyQkMW5dSUNZ6kjKxi/ ENT+e0XwFZIPk0zMfY78B/XVqTU2qc18jFFyXflCuRWbP/BfamWFGUhRNepm/3n5Q0 zTg7ATPHryOpOK8uzOSfmeEmYdraurN5g5GH8eqGla3o9ZU7R1g33tcoZR7QSVJ6T+ oeLYmEJnuGx3Mbl7IpjMxy8JUG/StiobYgXZc8KhKZihihqc27WNg+KE/WOs8wiMEl Jks44EEi6jI0Q== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH 13/13] selftests/bpf: add uprobe_multi test on overlayfs without data Reply-To: sashiko-reviews@lists.linux.dev Cc: linux-security-module@vger.kernel.org In-Reply-To: <20261115-work-ovl-d_real-v1-13-ca155efbcb2e@kernel.org> References: <20261115-work-ovl-d_real-v1-0-ca155efbcb2e@kernel.org> <20261115-work-ovl-d_real-v1-13-ca155efbcb2e@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Sun, 15 Nov 2026 14:12:19 +0000 X-Mailing-List: linux-security-module@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Add a uprobe_multi test that attaches to a metacopy file on overlayfs > whose redirect into a data-only layer points at nothing: >=20 > - the overlayfs is set up in a child in its own mount namespace >=20 > - BPF_LINK_CREATE must fail with ENOENT from the lazy lowerdata lookup >=20 > - skip if overlayfs with data-only layers isn't available >=20 > Before d_real() could fail this got an EIO from uprobe_register(). >=20 > 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/20261115-work-ovl-d= _real-v1-0-ca155efbcb2e@kernel.org?part=3D13