From dce93566b252c5b579ffbc3cebbb49fad3ebd8cf Mon Sep 17 00:00:00 2001
From: ljy <1134570045@qq.com>
Date: Thu, 4 Aug 2022 17:25:55 +0800
Subject: [PATCH] Add address alignment to lwp_unmap_user

---
 components/lwp/lwp_user_mm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/components/lwp/lwp_user_mm.c b/components/lwp/lwp_user_mm.c
index a765f8cbb3..57473c3d9a 100644
--- a/components/lwp/lwp_user_mm.c
+++ b/components/lwp/lwp_user_mm.c
@@ -129,6 +129,7 @@ int lwp_unmap_user(struct rt_lwp *lwp, void *va)
     int pa_need_free = 0;
 
     rt_mm_lock();
+    va = (void *)((size_t)va & ~ARCH_PAGE_MASK);
     ma_avl_node = lwp_map_find(lwp->map_area, (size_t)va);
     if (!ma_avl_node)
     {
-- 
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