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-rw-r--r--kernel/fork.c2
-rw-r--r--tools/testing/selftests/clone3/clone3.c3
2 files changed, 4 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index f68954d05e89..d8cda4c6de6c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2936,7 +2936,7 @@ static bool clone3_args_valid(struct kernel_clone_args *kargs)
* - make the CLONE_DETACHED bit reusable for clone3
* - make the CSIGNAL bits reusable for clone3
*/
- if (kargs->flags & (CLONE_DETACHED | CSIGNAL))
+ if (kargs->flags & (CLONE_DETACHED | (CSIGNAL & (~CLONE_NEWTIME))))
return false;
if ((kargs->flags & (CLONE_SIGHAND | CLONE_CLEAR_SIGHAND)) ==
diff --git a/tools/testing/selftests/clone3/clone3.c b/tools/testing/selftests/clone3/clone3.c
index cd4582129c7d..4fce46afe6db 100644
--- a/tools/testing/selftests/clone3/clone3.c
+++ b/tools/testing/selftests/clone3/clone3.c
@@ -195,5 +195,8 @@ int main(int argc, char *argv[])
test_clone3(CLONE_NEWPID, getpagesize() + 8, -E2BIG,
CLONE3_ARGS_NO_TEST);
+ /* Do a clone3() in a new time namespace */
+ test_clone3(CLONE_NEWTIME, 0, 0, CLONE3_ARGS_NO_TEST);
+
return !ksft_get_fail_cnt() ? ksft_exit_pass() : ksft_exit_fail();
}