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[IPV6]: Fix for ipv6_setsockopt NULL dereference

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I came across this bug in http://bugzilla.kernel.org/show_bug.cgi?id=8155

Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Olaf Kirch
2007-03-09 13:55:38 -08:00
committed by David S. Miller
parent aabb601b0f
commit dfee0a725b
1 changed files with 1 additions and 1 deletions
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2
net/ipv6/ipv6_sockglue.c
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@@ -413,7 +413,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
} }
/* routing header option needs extra check */ /* routing header option needs extra check */
if (optname == IPV6_RTHDR && opt->srcrt) { if (optname == IPV6_RTHDR && opt && opt->srcrt) {
struct ipv6_rt_hdr *rthdr = opt->srcrt; struct ipv6_rt_hdr *rthdr = opt->srcrt;
switch (rthdr->type) { switch (rthdr->type) {
case IPV6_SRCRT_TYPE_0: case IPV6_SRCRT_TYPE_0: