Cc: Ye Ting <ting...@intel.com>
Cc: Wu Jiaxin <jiaxin...@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu Siyuan <siyuan...@intel.com>
---
MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.c
b/MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.c
index 9a70e90..abc07fb 100644
--- a/MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.c
+++ b/MdeModulePkg/Library/DxeIpIoLib/DxeIpIoLib.c
@@ -1028,6 +1028,12 @@ IpIoListenHandlerDpc (
}
if (IpIo->IpVersion == IP_VERSION_4) {
+ if (IP4_IS_LOCAL_BROADCAST (EFI_IP4
(RxData->Ip4RxData.Header->SourceAddress))) {
+ //
+ // The source address is a broadcast address, discard it.
+ //
+ goto CleanUp;
+ }
if ((EFI_IP4 (RxData->Ip4RxData.Header->SourceAddress) != 0) &&
(IpIo->SubnetMask != 0) &&
IP4_NET_EQUAL (IpIo->StationIp, EFI_NTOHL (((EFI_IP4_RECEIVE_DATA *)
RxData)->Header->SourceAddress), IpIo->SubnetMask) &&
--
2.7.4.windows.1
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