The xmlSchemaGetFacetValueAsUlong() API is an external API.
The validity of external input parameters must be strictly verified.
Before accessing "facet->val->value", we need check whether "facet->val" is
a null pointer.
Signed-off-by: wuqing <wuqin...@huawei.com>
Signed-off-by: Xiaoming Ni <nixiaom...@huawei.com>
---
xmlschemastypes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xmlschemastypes.c b/xmlschemastypes.c
index d6b9f924..07b5fd76 100644
--- a/xmlschemastypes.c
+++ b/xmlschemastypes.c
@@ -5142,7 +5142,7 @@ xmlSchemaGetFacetValueAsULong(xmlSchemaFacetPtr facet)
/*
* TODO: Check if this is a decimal.
*/
- if (facet == NULL)
+ if (facet == NULL || facet->val == NULL)
return 0;
return ((unsigned long) facet->val->value.decimal.lo);
}
--
2.27.0
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