ping On 2020/11/24 14:55, Xiaoming Ni wrote:
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); }
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