lkml.org 
[lkml]   [2019]   [May]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2] atm: iphase: Avoid copying pointers to user space.
Date
Remove the MEMDUMP_DEV case in ia_ioctl to avoid copy
pointers to user space.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
---
drivers/atm/iphase.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index 5278c57dce73..302cf0ba1600 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -2767,12 +2767,6 @@ static int ia_ioctl(struct atm_dev *dev, unsigned int cmd, void __user *arg)
case MEMDUMP:
{
switch (ia_cmds.sub_cmd) {
- case MEMDUMP_DEV:
- if (!capable(CAP_NET_ADMIN)) return -EPERM;
- if (copy_to_user(ia_cmds.buf, iadev, sizeof(IADEV)))
- return -EFAULT;
- ia_cmds.status = 0;
- break;
case MEMDUMP_SEGREG:
if (!capable(CAP_NET_ADMIN)) return -EPERM;
tmps = (u16 __user *)ia_cmds.buf;
--
2.11.0
\
 
 \ /
  Last update: 2019-05-15 02:44    [W:0.036 / U:10.684 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site