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| author | Eric Dumazet <edumazet@google.com> | 2018-04-23 04:29:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-29 08:45:30 +0300 |
| commit | f4dd54821e6331dacf886a7e4fa5cec73b84ed95 (patch) | |
| tree | c5b4fdb1230e6ddf9a9c2028feee845c3d74de33 /net/ipv6 | |
| parent | e2917cf238a2369f8e171b2eb3daad4ba43bcd05 (diff) | |
| download | linux-f4dd54821e6331dacf886a7e4fa5cec73b84ed95.tar.xz | |
ipv6: add RTA_TABLE and RTA_PREFSRC to rtm_ipv6_policy
[ Upstream commit aa8f8778493c85fff480cdf8b349b1e1dcb5f243 ]
KMSAN reported use of uninit-value that I tracked to lack
of proper size check on RTA_TABLE attribute.
I also believe RTA_PREFSRC lacks a similar check.
Fixes: 86872cb57925 ("[IPv6] route: FIB6 configuration using struct fib6_config")
Fixes: c3968a857a6b ("ipv6: RTA_PREFSRC support for ipv6 route source address selection")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/route.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 168e40d98cce..82bf2c4ebdb2 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -2333,11 +2333,13 @@ void rt6_mtu_change(struct net_device *dev, unsigned int mtu) static const struct nla_policy rtm_ipv6_policy[RTA_MAX+1] = { [RTA_GATEWAY] = { .len = sizeof(struct in6_addr) }, + [RTA_PREFSRC] = { .len = sizeof(struct in6_addr) }, [RTA_OIF] = { .type = NLA_U32 }, [RTA_IIF] = { .type = NLA_U32 }, [RTA_PRIORITY] = { .type = NLA_U32 }, [RTA_METRICS] = { .type = NLA_NESTED }, [RTA_MULTIPATH] = { .len = sizeof(struct rtnexthop) }, + [RTA_TABLE] = { .type = NLA_U32 }, }; static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh, |