linux.git/tools/testing/selftests/pidfd/pidfd_setns_test.c, branch v5.8 Linux kernel source tree tests: test for setns() EINVAL regression 2020-06-16T22:48:54+00:00 Christian Brauner christian.brauner@ubuntu.com 2020-06-16T22:48:54+00:00 86f56395feb2b106b125c47e72192e37da5dd088 Verify that setns() reports EINVAL when an fd is passed that refers to an open file but the file is not a file descriptor useable to interact with namespaces. Cc: Jan Stancek <jstancek@redhat.com> Cc: Cyril Hrubis <chrubis@suse.cz> Link: https://lore.kernel.org/lkml/20200615085836.GR12456@shao2-debian Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> 
Verify that setns() reports EINVAL when an fd is passed that refers to an
open file but the file is not a file descriptor useable to interact with
namespaces.

Cc: Jan Stancek <jstancek@redhat.com>
Cc: Cyril Hrubis <chrubis@suse.cz>
Link: https://lore.kernel.org/lkml/20200615085836.GR12456@shao2-debian
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
selftests/pidfd: add pidfd setns tests 2020-05-13T09:41:22+00:00 Christian Brauner christian.brauner@ubuntu.com 2020-05-05T14:04:32+00:00 2b40c5db73e239531ea54991087f4edc07fbb08e This is basically a test-suite for setns() and as of now contains: - test that we can't pass garbage flags - test that we can't attach to the namespaces of task that has already exited - test that we can incrementally setns into all namespaces of a target task using a pidfd - test that we can setns atomically into all namespaces of a target task - test that we can't cross setns into a user namespace outside of our user namespace hierarchy - test that we can't setns into namespaces owned by user namespaces over which we are not privileged Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/r/20200505140432.181565-4-christian.brauner@ubuntu.com 
This is basically a test-suite for setns() and as of now contains:
- test that we can't pass garbage flags
- test that we can't attach to the namespaces of  task that has already exited
- test that we can incrementally setns into all namespaces of a target task
  using a pidfd
- test that we can setns atomically into all namespaces of a target task
- test that we can't cross setns into a user namespace outside of our user
  namespace hierarchy
- test that we can't setns into namespaces owned by user namespaces over which
  we are not privileged

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/20200505140432.181565-4-christian.brauner@ubuntu.com