diff options
| author | Bill Wendling <morbo@google.com> | 2026-09-08 22:27:30 +0000 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-09-09 09:45:01 +0200 |
| commit | f6f1a2496ba5dcc076d7fb7aa329887cd6ae55fa (patch) | |
| tree | 7fc226bb2f249a4f225e06a03782d3d8dfc00475 /init/Kconfig | |
| parent | b31397fe3007a9fc636fcc34fcdc2b1e69d46804 (diff) | |
userns: Add KUnit test suite for uid_gid_map
Add a KUnit test suite to verify the insertion and sorting of mappings
in struct uid_gid_map. This test suite validates both base extent
insertion (<= 5 mappings) and extended extent insertion (> 5 mappings,
which triggers the allocation of the forward and reverse pointers).
This is especially useful for verifying that the __counted_by_ptr
attribute added to 'forward' and 'reverse' pointers works correctly
without causing any runtime bounds-checking panics or traps.
Signed-off-by: Bill Wendling <morbo@google.com>
Link: https://patch.msgid.link/20260908222734.3048684-2-morbo@google.com
Tested-by: Bradley Morgan <brads@mainlining.org>
Reviewed-by: Bradley Morgan <brads@mainlining.org>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index 8583d9f06c52..27c1ffc675bf 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1457,6 +1457,17 @@ config USER_NS If unsure, say N. +config USER_NS_MAP_KUNIT_TEST + tristate "KUint test for user namespace map insertion" if !KUNIT_ALL_TESTS + depends on USER_NS && KUNIT + default KUNIT_ALL_TESTS + help + This builds the KUnit test for user namespace uid/gid map insertion. + It validates map insertion, limits, dynamic allocation of the + extended extents array, and mapping sorting functions. + + If unsure, say N. + config PID_NS bool "PID Namespaces" default y |