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fix(style) check style count overflow (#3627)

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Bora Özgen 2022-08-26 17:34:46 +02:00 committed by GitHub
parent 314a1d79a8
commit 89e3a712cb
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1 changed files with 3 additions and 0 deletions
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src/core/lv_obj_style.c
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@ -89,6 +89,7 @@ void lv_obj_add_style(lv_obj_t * obj, const lv_style_t * style, lv_style_selecto
/*Allocate space for the new style and shift the rest of the style to the end*/
obj->style_cnt++;
LV_ASSERT(obj->style_cnt != 0);
obj->styles = lv_realloc(obj->styles, obj->style_cnt * sizeof(_lv_obj_style_t));
LV_ASSERT_MALLOC(obj->styles);
@ -519,6 +520,7 @@ static lv_style_t * get_local_style(lv_obj_t * obj, lv_style_selector_t selector
}
obj->style_cnt++;
LV_ASSERT(obj->style_cnt != 0);
obj->styles = lv_realloc(obj->styles, obj->style_cnt * sizeof(_lv_obj_style_t));
LV_ASSERT_MALLOC(obj->styles);
@ -556,6 +558,7 @@ static _lv_obj_style_t * get_trans_style(lv_obj_t * obj, lv_style_selector_t se
if(i != obj->style_cnt) return &obj->styles[i];
obj->style_cnt++;
LV_ASSERT(obj->style_cnt != 0);
obj->styles = lv_realloc(obj->styles, obj->style_cnt * sizeof(_lv_obj_style_t));
for(i = obj->style_cnt - 1; i > 0 ; i--) {