Structure info is copied to userland with some padding fields unitialized.
It leads to leaking of stack memory.
Signed-off-by: Vasiliy Kulikov <segooon@xxxxxxxxx>
---
Compile tested.
drivers/char/hpet.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index a4eee32..f6722ef 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -581,6 +581,7 @@ hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg,
break;
case HPET_INFO:
{
+ memset(info, 0, sizeof(*info));
if (devp->hd_ireqfreq)
info->hi_ireqfreq =
hpet_time_div(hpetp, devp->hd_ireqfreq);
--
1.7.0.4
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