tree d1998af0632459026ee9bf479afcf9897f626ac2
parent 7f1eced8b0a001c4d5a8cfa5ac7b5cbc89fedab8
author Wang Chen <wangchen@cn.fujitsu.com> 1207532527 +0800
committer YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> 1207975403 +0900

[IPV6]: Check length of optval provided by user in setsockopt().

Check length of setsockopt's optval, which provided by user, before copy it
from user space.
For POSIX compliant, return -EINVAL for setsockopt of short lengths.

Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>