BootFileName or ServerName in DHCP offer may be overloaded and cannot be used, so we manually set the strings to be null to avoid misusing.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: chenzhihui <[email protected]> Signed-off-by: Heyi Guo <[email protected]> Cc: Feng Tian <[email protected]> Cc: Star Zeng <[email protected]> Cc: Siyuan Fu <[email protected]> Cc: Jiaxin Wu <[email protected]> --- MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.c b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.c index 6c06373..ecd1903 100644 --- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.c +++ b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.c @@ -172,6 +172,8 @@ PxeBcParseCachedDhcpPacket ( ); } } + // Terminate the invalid string to avoid misusing + Offer->Dhcp4.Header.BootFileName[0] = 0; } if ((Option->Data[0] & PXEBC_DHCP4_OVERLOAD_SERVER_NAME) != 0) { for (Index = 0; Index < PXEBC_DHCP4_TAG_INDEX_MAX; Index++) { @@ -183,6 +185,8 @@ PxeBcParseCachedDhcpPacket ( ); } } + // Terminate the invalid string to avoid misusing + Offer->Dhcp4.Header.ServerName[0] = 0; } } -- 2.7.0 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
