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修复单向列表移除节点时存在的安全风险. 

Signed-off-by: vandoul <vandoul@ticks.cn>
This commit is contained in:
vandoul 2025-06-10 10:01:07 +08:00 committed by Rbb666
parent b23d87be06
commit 169d84d65a
1 changed files with 6 additions and 1 deletions
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7
include/rtservice.h
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@ -234,6 +234,7 @@ rt_inline rt_slist_t *rt_slist_pop(rt_slist_t *l)
if (node != (rt_slist_t *)0)
{
((struct rt_slist_node *)l)->next = node->next;
node->next = RT_NULL;
}
return node;
@ -246,7 +247,11 @@ rt_inline rt_slist_t *rt_slist_remove(rt_slist_t *l, rt_slist_t *n)
while (node->next && node->next != n) node = node->next;
/* remove node */
if (node->next != (rt_slist_t *)0) node->next = node->next->next;
if (node->next != (rt_slist_t *)0)
{
node->next = node->next->next;
n->next = RT_NULL;
}
return l;
}