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fix:Modify function parameter overflow risk

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Signed-off-by: mahai <mahai5@huawei.com>
This commit is contained in:
mahai
2022-07-12 18:50:19 +08:00
parent 212e1c6a05
commit 32e3719cc1
2 changed files with 17 additions and 0 deletions
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khdf/liteos/platform/src/gpio_dev.c
+5
View File
@@ -105,6 +105,11 @@ static int GpioIoctl(struct file *filep, int cmd, unsigned long arg)
struct drv_data* drvData = (struct drv_data* )filep->f_vnode->data;
bitNum = (uint16_t)(uintptr_t)drvData->priv;
if (arg == 0) {
HDF_LOGE("%s arg is 0", __func__);
return HDF_ERR_INVALID_PARAM;
}
ret = LOS_CopyToKernel(&info, sizeof(struct GpioBitInfo),
(const VOID *)(uintptr_t)arg, sizeof(struct GpioBitInfo));
if (ret != 0) {
khdf/liteos/platform/src/uart_dev.c
+12
View File
@@ -37,6 +37,7 @@
#define HDF_LOG_TAG hdf_uart_dev
#define HDF_UART_FS_MODE 0660
#define ARG_MAX_RANG 0xFFFFFFFF
static int32_t UartDevOpen(struct file *filep)
{
@@ -145,6 +146,12 @@ static int32_t UartDevIoctl(struct file *filep, int32_t cmd, unsigned long arg)
{
int32_t ret = HDF_FAILURE;
struct UartHost *host = NULL;
if (arg == 0) {
HDF_LOGE("%s arg is 0", __func__);
return HDF_ERR_INVALID_PARAM;
}
if (filep == NULL || filep->f_vnode == NULL) {
return HDF_ERR_INVALID_PARAM;
}
@@ -153,6 +160,11 @@ static int32_t UartDevIoctl(struct file *filep, int32_t cmd, unsigned long arg)
switch (cmd) {
case UART_CFG_BAUDRATE:
if (arg > ARG_MAX_RANG) {
HDF_LOGE("%s arg out of range", __func__);
ret = HDF_ERR_INVALID_PARAM;
break;
}
ret = UartHostSetBaud(host, arg);
break;
case UART_CFG_RD_BLOCK: