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authorOlaf Kirch <olaf.kirch@oracle.com>2007-03-09 13:55:38 -0800
committerDavid S. Miller <davem@davemloft.net>2007-03-09 13:55:38 -0800
commitdfee0a725bb027b749ffdd318eb48b91d564b266 (patch)
treecdb3571b66fec9105ece2e22b27575a2cf2cbfb5 /net/ipv6
parentaabb601b0f08b909b650f1a7bfa1e8d9b5a8d999 (diff)
downloadlinux-dfee0a725bb027b749ffdd318eb48b91d564b266.tar.bz2
[IPV6]: Fix for ipv6_setsockopt NULL dereference
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>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ipv6_sockglue.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 4e0561a082d0..b82333b9228f 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -413,7 +413,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
}
/* 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;
switch (rthdr->type) {
case IPV6_SRCRT_TYPE_0: