diff options
| author | Fuqian Huang <huangfq.daxian@gmail.com> | 2019-05-15 08:42:48 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-05-16 12:08:28 -0700 |
| commit | 55c0dd8adda8f25a0bdc7b58a2dbe70b59a3dfbe (patch) | |
| tree | 86869c102467cb1000f7290711dc0364df266219 | |
| parent | 7fecf0a1b72ce84d32e63d840c775fc440fc8261 (diff) | |
atm: iphase: Avoid copying pointers to user space.
Remove the MEMDUMP_DEV case in ia_ioctl to avoid copy
pointers to user space.
Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/atm/iphase.c | 6 |
1 files changed, 0 insertions, 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; |