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D14848.id40779.diff
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D14848.id40779.diff
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Index: sys/dev/nxge/if_nxge.c
===================================================================
--- sys/dev/nxge/if_nxge.c
+++ sys/dev/nxge/if_nxge.c
@@ -1364,11 +1364,15 @@
xge_ioctl_stats(xge_lldev_t *lldev, struct ifreq *ifreqp)
{
xge_hal_status_e status = XGE_HAL_OK;
- char *data = (char *)ifreqp->ifr_data;
+ char cmd, mode;
void *info = NULL;
int retValue = EINVAL;
- switch(*data) {
+ cmd = fubyte(ifreqp->ifr_data);
+ if (cmd == -1)
+ return (EFAULT);
+
+ switch(cmd) {
case XGE_QUERY_STATS:
mtx_lock(&lldev->mtx_drv);
status = xge_hal_stats_hw(lldev->devh,
@@ -1496,8 +1500,8 @@
case XGE_SET_BUFFER_MODE_1:
case XGE_SET_BUFFER_MODE_2:
case XGE_SET_BUFFER_MODE_5:
- *data = (*data == XGE_SET_BUFFER_MODE_1) ? 'Y':'N';
- if(copyout(data, ifreqp->ifr_data, sizeof(data)) == 0)
+ mode = (cmd == XGE_SET_BUFFER_MODE_1) ? 'Y':'N';
+ if(copyout(&mode, ifreqp->ifr_data, sizeof(mode)) == 0)
retValue = 0;
break;
default:
@@ -1518,11 +1522,18 @@
int
xge_ioctl_registers(xge_lldev_t *lldev, struct ifreq *ifreqp)
{
- xge_register_t *data = (xge_register_t *)ifreqp->ifr_data;
+ xge_register_t tmpdata;
+ xge_register_t *data;
xge_hal_status_e status = XGE_HAL_OK;
int retValue = EINVAL, offset = 0, index = 0;
+ int error;
u64 val64 = 0;
+ error = copyin(ifreqp->ifr_data, &tmpdata, sizeof(tmpdata));
+ if (error != 0)
+ return (error);
+ data = &tmpdata;
+
/* Reading a register */
if(strcmp(data->option, "-r") == 0) {
data->value = 0x0000;
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D14848.id40779.diff (1 KB)
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D14848: Don't access userspace directly from the kernel in nxge(4).
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