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Fix buffer overflow in windows tap driver

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This commit is contained in:
Joseph Henry
2020-09-23 15:31:20 -07:00
parent ff23d3051f
commit b3331c5ec2
1 changed files with 2 additions and 1 deletions
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3
windows/TapDriver6/adapter.c
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@ -272,7 +272,8 @@ tapReadConfiguration(
if (status == NDIS_STATUS_SUCCESS) if (status == NDIS_STATUS_SUCCESS)
{ {
if (configParameter->ParameterType == NdisParameterString) if (configParameter->ParameterType == NdisParameterString
&& configParameter->ParameterData.StringData.Length <= sizeof(Adapter->NetCfgInstanceIdBuffer) - sizeof(WCHAR))
{ {
DEBUGP (("[TAP] NdisReadConfiguration (NetCfgInstanceId=%wZ)\n", DEBUGP (("[TAP] NdisReadConfiguration (NetCfgInstanceId=%wZ)\n",
&configParameter->ParameterData.StringData )); &configParameter->ParameterData.StringData ));