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Required by switch_timens() to open /proc/self/ns/time_for_children.
CONFIG_GENERIC_VDSO_TIME_NS is not available on UML, so pidfd_setns_test
cannot be run successfully on this architecture.
Cc: Shuah Khan <[email protected]>
Fixes: 2b40c5db73e2 ("selftests/pidfd: add pidfd setns tests")
Reviewed-by: Kees Cook <[email protected]>
Reviewed-by: Christian Brauner <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mickaël Salaün <[email protected]>
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kcmp syscall is used in pidfd_getfd_test.c, so add
CONFIG_CHECKPOINT_RESTORE=y to config to ensure kcmp is available.
Signed-off-by: Tommi Rantala <[email protected]>
Acked-by: Christian Brauner <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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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 <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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