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[feature-wisun] Update STM32 EMAC driver - limit RX frame length #12516

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Merged
merged 2 commits into from
Feb 28, 2020
Merged

[feature-wisun] Update STM32 EMAC driver - limit RX frame length #12516

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f06c93a
Update STM32 EMAC driver - limit RX frame length
Feb 18, 2020
c4fe17c
Update STM32 EMAC driver based on review
Feb 20, 2020
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4 changes: 2 additions & 2 deletions features/netsocket/emac-drivers/TARGET_STM/stm32xx_emac.cpp
100644 → 100755
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Original file line number Diff line number Diff line change
Expand Up @@ -526,7 +526,7 @@ bool STM32_EMAC::link_out(emac_mem_buf_t *buf)
int STM32_EMAC::low_level_input(emac_mem_buf_t **buf)
#ifndef ETH_IP_VERSION_V2
{
uint16_t len = 0;
uint32_t len = 0;
uint8_t *buffer;
__IO ETH_DMADescTypeDef *dmarxdesc;
uint32_t bufferoffset = 0;
Expand All @@ -546,7 +546,7 @@ int STM32_EMAC::low_level_input(emac_mem_buf_t **buf)

dmarxdesc = EthHandle.RxFrameInfos.FSRxDesc;

if (len > 0) {
if (len > 0 && len <= ETH_RX_BUF_SIZE) {
/* Allocate a memory buffer chain from buffer pool */
*buf = memory_manager->alloc_pool(len, 0);
}
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