diff options
Diffstat (limited to 'common/usbx_network/src/ux_network_driver.c')
| -rw-r--r-- | common/usbx_network/src/ux_network_driver.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/common/usbx_network/src/ux_network_driver.c b/common/usbx_network/src/ux_network_driver.c index e1be41f..c2745c8 100644 --- a/common/usbx_network/src/ux_network_driver.c +++ b/common/usbx_network/src/ux_network_driver.c @@ -743,7 +743,7 @@ UINT i; /* FUNCTION RELEASE */ /* */ /* _ux_network_driver_packet_received PORTABLE C */ -/* 6.1.12 */ +/* 6.3.0 */ /* AUTHOR */ /* */ /* Chaoqiong Xiao, Microsoft Corporation */ @@ -781,6 +781,10 @@ UINT i; /* 07-29-2022 Yajun Xia Modified comment(s), */ /* fixed ipv6 support issue, */ /* resulting in version 6.1.12 */ +/* 10-31-2023 Chaoqiong Xiao Modified comment(s), */ +/* checked packet data length */ +/* before process the packet, */ +/* resulting in version 6.3.0 */ /* */ /**************************************************************************/ @@ -802,6 +806,18 @@ NX_IP *nx_ip; } + /* Check if the packet is valid for ethernet header process. */ + if (packet_ptr -> nx_packet_length < NX_ETHERNET_SIZE) + { + + /* We received a malformed packet. Report to application. */ + _ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, UX_CLASS_MALFORMED_PACKET_RECEIVED_ERROR); + + /* Invalid ethernet header... release the packet. */ + nx_packet_release(packet_ptr); + return; + } + /* Pickup the packet header to determine where the packet needs to be sent. */ packet_type = _ux_utility_short_get_big_endian(packet_ptr -> nx_packet_prepend_ptr + 12); |