Commit cfb266c0 authored Aug 03, 2008 by Yang Hongyang Committed by David S. Miller Aug 03, 2008

ipv6: Fix the return value of Set Hop-by-Hop options header with NULL data pointer



When Set Hop-by-Hop options header with NULL data 
pointer and optlen is not zero use setsockopt(),
the kernel successfully return 0 instead of 
return error EINVAL or EFAULT.

This patch fix the problem.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 1730554f

net/ipv6/ipv6_sockglue.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -346,6 +346,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
		*/
		if (optlen == 0)
		optval = NULL;
		else if (optval == NULL)
		goto e_inval;
		else if (optlen < sizeof(struct ipv6_opt_hdr) \|\|
		optlen & 0x7 \|\| optlen > 8 * 255)
		goto e_inval;