We should not dereference __user pointers directly. https://yarchive.net/comp/linux/user_pointers.html Fixes: 482f07775cf5 ("drm/amdkfd: Simplify event ID and signal slot management") Signed-off-by: Lang Yu <lang.yu@xxxxxxx> --- drivers/gpu/drm/amd/amdkfd/kfd_events.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c index 3eea4edee355..74d3bdcfe341 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c @@ -201,7 +201,7 @@ static int create_signal_event(struct file *devkfd, p->signal_event_count++; - ev->user_signal_address = &p->signal_page->user_address[ev->event_id]; + ev->user_signal_address = p->signal_page->user_address + ev->event_id; pr_debug("Signal event number %zu created with id %d, address %p\n", p->signal_event_count, ev->event_id, ev->user_signal_address); -- 2.25.1
