D31483.diff
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	diff --git a/sys/compat/linux/linux_fork.c b/sys/compat/linux/linux_fork.c
	--- a/sys/compat/linux/linux_fork.c
	+++ b/sys/compat/linux/linux_fork.c
	@@ -64,6 +64,7 @@
	#include <compat/linux/linux_emul.h>
	#include <compat/linux/linux_fork.h>
	#include <compat/linux/linux_futex.h>
	+#include <compat/linux/linux_mib.h>
	#include <compat/linux/linux_misc.h>
	#include <compat/linux/linux_util.h>

	@@ -411,6 +412,20 @@
	if (uca->stack != 0 && uca->stack_size == 0)
	return (EINVAL);

	+ /* Verify that no unsupported flags are passed along. */
	+ if ((uca->flags & LINUX_CLONE_NEWTIME) != 0) {
	+ LINUX_RATELIMIT_MSG("unsupported clone3 option CLONE_NEWTIME");
	+ return (ENOSYS);
	+ }
	+ if ((uca->flags & LINUX_CLONE_INTO_CGROUP) != 0) {
	+ LINUX_RATELIMIT_MSG("unsupported clone3 option CLONE_INTO_CGROUP");
	+ return (ENOSYS);
	+ }
	+ if (uca->set_tid != 0 \|\| uca->set_tid_size != 0) {
	+ LINUX_RATELIMIT_MSG("unsupported clone3 set_tid");
	+ return (ENOSYS);
	+ }
	+
	return (0);
	}