From mboxrd@z Thu Jan 1 00:00:00 1970 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 B75AD33F388; Wed, 29 Oct 2025 12:25:37 +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=1761740737; cv=none; b=LEPS+yKvG7SCSg63A1bnn5MY1FSF9Md2hoSvDaXB0uJfLjyQi4/UXWGT4ztaU1OB0qZrqJjJCAdUjINCXw7pHGLVV6YHK5sKoNh712fT6LhK3pllbDFNIs5vPeJQ7WtrrEmCY6rtf7sCC1Cwauokk440LItWNmyCNp7fmuPFLyo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761740737; c=relaxed/simple; bh=KWYYGboDUt3swjKDxkebVx+xZOw67uWV/kh+IrzwFAE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ijfSe8vQtUjoQoNl6ren5XPmGxOSEg5Db3mmnJwz9qes386FQlc1w80IY0AeOIxbXuES/wQkh/yVSqiAzOXOJVeZCFlb76dRmB8IUEa7gEw5WcnDyEF6PPiyw+jS7+anLwXiVBNn9GmCX7kKawu/RWxuKnXq61FJ429gTsHN9U0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AVaWB+9l; 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="AVaWB+9l" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BCA9DC4CEF7; Wed, 29 Oct 2025 12:25:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761740737; bh=KWYYGboDUt3swjKDxkebVx+xZOw67uWV/kh+IrzwFAE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=AVaWB+9lgEiya89wxq9QmoGHXnKfVa+Etod4Hrej3a5f2Eg6FStTI1xbIgXRFA9zC PI4r41FIV9BASaM+eRPN8NZw4Up9UJl79JByB5Hs0gKRpfk4WShrDkQ7f6w6HLldKO FmQdbt7uVt95/SJHqCkTIrk4ZraDzXhZFYgVIU8MsZJLlY5ThfNPg71Q/BmJKtVah8 DzgBL3es4Es58K/yWJRDK1FLJekz6STMgszsauBgsveIVIXQyBqeFJ12VHqP5yv4az kiB3GKQAnhG9N3Pvyc03IS0J143ZuH37Py6BG3f5udqUHtbsDbs2vFPw/2ejS/2k0s hXQUrDuJa1Icw== From: Christian Brauner Date: Wed, 29 Oct 2025 13:21:12 +0100 Subject: [PATCH v4 59/72] selftests/namespaces: fifth inactive namespace resurrection test Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20251029-work-namespace-nstree-listns-v4-59-2e6f823ebdc0@kernel.org> References: <20251029-work-namespace-nstree-listns-v4-0-2e6f823ebdc0@kernel.org> In-Reply-To: <20251029-work-namespace-nstree-listns-v4-0-2e6f823ebdc0@kernel.org> To: linux-fsdevel@vger.kernel.org, Josef Bacik , Jeff Layton Cc: Jann Horn , Mike Yuan , =?utf-8?q?Zbigniew_J=C4=99drzejewski-Szmek?= , Lennart Poettering , Daan De Meyer , Aleksa Sarai , Amir Goldstein , Tejun Heo , Johannes Weiner , Thomas Gleixner , Alexander Viro , Jan Kara , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, bpf@vger.kernel.org, Eric Dumazet , Jakub Kicinski , netdev@vger.kernel.org, Arnd Bergmann , Christian Brauner X-Mailer: b4 0.15-dev-96507 X-Developer-Signature: v=1; a=openpgp-sha256; l=1167; i=brauner@kernel.org; h=from:subject:message-id; bh=KWYYGboDUt3swjKDxkebVx+xZOw67uWV/kh+IrzwFAE=; b=owGbwMvMwCU28Zj0gdSKO4sYT6slMWQysfW/VN/m4BTSM/f00QkLPtR9/Rzjo2cSfWd9s3HFI t8FcdbTO0pZGMS4GGTFFFkc2k3C5ZbzVGw2ytSAmcPKBDKEgYtTACaSz8rIsMFt9a8jxyUuv87Y Gv3kU8nz3S9Zk++df8F0tluwXY9v5j6Gf2ZGLJtVuwxu+j79X3MnQ4cl5vFLrvKQoopO56fmX9t EmAE= X-Developer-Key: i=brauner@kernel.org; a=openpgp; fpr=4880B8C9BD0E5106FC070F4F7B3C391EFEA93624 Test SIOCGSKNS fails on non-socket file descriptors. Signed-off-by: Christian Brauner --- .../testing/selftests/namespaces/siocgskns_test.c | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/tools/testing/selftests/namespaces/siocgskns_test.c b/tools/testing/selftests/namespaces/siocgskns_test.c index 28e45954c4fa..bbfef3c51ac1 100644 --- a/tools/testing/selftests/namespaces/siocgskns_test.c +++ b/tools/testing/selftests/namespaces/siocgskns_test.c @@ -307,4 +307,30 @@ TEST(siocgskns_across_setns) close(netns_a_fd); } +/* + * Test SIOCGSKNS fails on non-socket file descriptors. + */ +TEST(siocgskns_non_socket) +{ + int fd; + int pipefd[2]; + + /* Test on regular file */ + fd = open("/dev/null", O_RDONLY); + ASSERT_GE(fd, 0); + + ASSERT_LT(ioctl(fd, SIOCGSKNS), 0); + ASSERT_TRUE(errno == ENOTTY || errno == EINVAL); + close(fd); + + /* Test on pipe */ + ASSERT_EQ(pipe(pipefd), 0); + + ASSERT_LT(ioctl(pipefd[0], SIOCGSKNS), 0); + ASSERT_TRUE(errno == ENOTTY || errno == EINVAL); + + close(pipefd[0]); + close(pipefd[1]); +} + TEST_HARNESS_MAIN -- 2.47.3