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Merge pull request #1990 from SoftEtherVPN/fix1972
Fix memory access error when IPv6 prefix reading, should resolve #1972
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commit
9ce27f363e
@ -1517,7 +1517,9 @@ void IPCProcessL3EventsEx(IPC *ipc, UINT64 now)
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// We save the router advertisement data for later use
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IPCIPv6AddRouterPrefixes(ipc, &p->ICMPv6HeaderPacketInfo.OptionList, src_mac, &ip_src);
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IPCIPv6AssociateOnNDTEx(ipc, &ip_src, src_mac, true);
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IPCIPv6AssociateOnNDTEx(ipc, &ip_src, p->ICMPv6HeaderPacketInfo.OptionList.SourceLinkLayer->Address, true);
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if (p->ICMPv6HeaderPacketInfo.OptionList.SourceLinkLayer != NULL) {
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IPCIPv6AssociateOnNDTEx(ipc, &ip_src, p->ICMPv6HeaderPacketInfo.OptionList.SourceLinkLayer->Address, true);
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}
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ndtProcessed = true;
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header_size = sizeof(ICMPV6_ROUTER_ADVERTISEMENT_HEADER);
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break;
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@ -2354,7 +2356,14 @@ void IPCIPv6AddRouterPrefixes(IPC *ipc, ICMPV6_OPTION_LIST *recvPrefix, UCHAR *m
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IntToSubnetMask6(&newRA->RoutedMask, recvPrefix->Prefix[i]->SubnetLength);
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CopyIP(&newRA->RouterAddress, ip);
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Copy(newRA->RouterMacAddress, macAddress, 6);
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Copy(newRA->RouterLinkLayerAddress, recvPrefix->SourceLinkLayer->Address, 6);
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if (recvPrefix->SourceLinkLayer != NULL)
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{
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Copy(newRA->RouterLinkLayerAddress, recvPrefix->SourceLinkLayer->Address, 6);
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}
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else
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{
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Zero(newRA->RouterLinkLayerAddress, 6);
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}
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Add(ipc->IPv6RouterAdvs, newRA);
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}
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}
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@ -2657,7 +2666,7 @@ void IPCIPv6SendUnicast(IPC *ipc, void *data, UINT size, IP *next_ip)
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}
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destMac = ra.RouterMacAddress;
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if (!IsMacUnicast(destMac) && !IsMacInvalid(ra.RouterMacAddress))
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if (!IsMacUnicast(destMac) && !IsMacInvalid(ra.RouterLinkLayerAddress))
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{
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destMac = ra.RouterLinkLayerAddress;
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}
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