[PATCH] statistics_write: ft1000: fix kernel info leak to userland

From: Vasiliy Kulikov
Date: Tue Sep 28 2010 - 13:49:46 EST


get_stat_data is not fully initialized before copy_to_user() call,
e.g. LedStat is not always set.

Signed-off-by: Vasiliy Kulikov <segooon@xxxxxxxxx>
---
drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c b/drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c
index 65087ce..467fd31 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_chdev.c
@@ -623,7 +623,7 @@ static int ft1000_ChIoctl (struct file *File, unsigned int Command,
break;
case IOCTL_GET_DSP_STAT_CMD:
//DEBUG("FT1000:ft1000_ChIoctl: IOCTL_FT1000_GET_DSP_STAT called\n");
-
+ memset(get_stat_data, 0, sizeof(get_stat_data));
memcpy(get_stat_data.DspVer, info->DspVer, DSPVERSZ);
memcpy(get_stat_data.HwSerNum, info->HwSerNum, HWSERNUMSZ);
memcpy(get_stat_data.Sku, info->Sku, SKUSZ);
--
1.7.0.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/