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| author | YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org> | 2013-01-21 09:58:50 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-01-21 15:41:41 -0500 |
| commit | b820bb6b996966d93a5442b5fbf803ea58e7f487 (patch) | |
| tree | 0abfaaf1cc30ca925fef15d755296ef1f3b24651 /net/ipv6/route.c | |
| parent | 100204147be9a2b87be2b118959b12eeaf8ef5d0 (diff) | |
| download | linux-stable-b820bb6b996966d93a5442b5fbf803ea58e7f487.tar.gz linux-stable-b820bb6b996966d93a5442b5fbf803ea58e7f487.tar.bz2 linux-stable-b820bb6b996966d93a5442b5fbf803ea58e7f487.zip | |
ndisc: Do not try to update "updated" time if neighbour has already gone.
Commit 2152caea ("ipv6: Do not depend on rt->n in rt6_probe().")
introduce a bug to try to update "updated" time in neighbour
structure.
Update the "updated" time only if neighbour is available.
Bug was found by Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/route.c')
| -rw-r--r-- | net/ipv6/route.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 2d94d5a7a051..f3328bc1174f 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -492,10 +492,10 @@ static void rt6_probe(struct rt6_info *rt) struct in6_addr mcaddr; struct in6_addr *target; - neigh->updated = jiffies; - - if (neigh) + if (neigh) { + neigh->updated = jiffies; write_unlock(&neigh->lock); + } target = (struct in6_addr *)&rt->rt6i_gateway; addrconf_addr_solict_mult(target, &mcaddr); |