diff options
| author | Christian Brauner <brauner@kernel.org> | 2025-10-29 13:21:12 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-11-03 17:41:23 +0100 |
| commit | 2b9fa5bf0c417c444d3c572dfe2138da7fdf11cd (patch) | |
| tree | 5f2cb0cd2cd1b78ce6a3d8d573f2ca619cd3f6fe | |
| parent | 40226da47124bdf454503f00a948585b7403c73a (diff) | |
selftests/namespaces: fifth inactive namespace resurrection test
Test SIOCGSKNS fails on non-socket file descriptors.
Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-59-2e6f823ebdc0@kernel.org
Tested-by: syzbot@syzkaller.appspotmail.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
| -rw-r--r-- | tools/testing/selftests/namespaces/siocgskns_test.c | 26 |
1 files changed, 26 insertions, 0 deletions
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 |