diff options
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/init/main.c b/init/main.c index b795aa341a3a..3b4ada11ed52 100644 --- a/init/main.c +++ b/init/main.c @@ -91,6 +91,7 @@ #include <linux/cache.h> #include <linux/rodata_test.h> #include <linux/jump_label.h> +#include <linux/mem_encrypt.h> #include <asm/io.h> #include <asm/bugs.h> @@ -423,7 +424,7 @@ static noinline void __ref rest_init(void) /* * Enable might_sleep() and smp_processor_id() checks. - * They cannot be enabled earlier because with CONFIG_PRREMPT=y + * They cannot be enabled earlier because with CONFIG_PREEMPT=y * kernel_thread() would trigger might_sleep() splats. With * CONFIG_PREEMPT_VOLUNTARY=y the init task might have scheduled * already, but it's stuck on the kthreadd_done completion. @@ -1034,6 +1035,13 @@ __setup("rodata=", set_debug_rodata); static void mark_readonly(void) { if (rodata_enabled) { + /* + * load_module() results in W+X mappings, which are cleaned up + * with call_rcu_sched(). Let's make sure that queued work is + * flushed so that we don't hit false positives looking for + * insecure pages which are W+X. + */ + rcu_barrier_sched(); mark_rodata_ro(); rodata_test(); } else |