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| author | Peter Heise <mail@pheise.de> | 2016-04-19 13:34:28 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-21 13:59:08 -0400 |
| commit | f937572925d8d7beb5aca1cf180e8b9af623a903 (patch) | |
| tree | 8b5f6cd9364293cb2640e4c6bc5e650c81897388 | |
| parent | b7de529c793c9131e58ddca37d49fd26866aa867 (diff) | |
| download | op-kernel-dev-f937572925d8d7beb5aca1cf180e8b9af623a903.zip op-kernel-dev-f937572925d8d7beb5aca1cf180e8b9af623a903.tar.gz | |
NLA_BINARY misuse bug in HSR
Removed .type field from NLA to do proper length checking.
Reported by Daniel Borkmann and Julia Lawall.
Signed-off-by: Peter Heise <peter.heise@airbus.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/hsr/hsr_netlink.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c index 5425d87..d4d1617 100644 --- a/net/hsr/hsr_netlink.c +++ b/net/hsr/hsr_netlink.c @@ -24,7 +24,7 @@ static const struct nla_policy hsr_policy[IFLA_HSR_MAX + 1] = { [IFLA_HSR_SLAVE2] = { .type = NLA_U32 }, [IFLA_HSR_MULTICAST_SPEC] = { .type = NLA_U8 }, [IFLA_HSR_VERSION] = { .type = NLA_U8 }, - [IFLA_HSR_SUPERVISION_ADDR] = { .type = NLA_BINARY, .len = ETH_ALEN }, + [IFLA_HSR_SUPERVISION_ADDR] = { .len = ETH_ALEN }, [IFLA_HSR_SEQ_NR] = { .type = NLA_U16 }, }; @@ -121,10 +121,9 @@ static struct rtnl_link_ops hsr_link_ops __read_mostly = { /* attribute policy */ -/* NLA_BINARY missing in libnl; use NLA_UNSPEC in userspace instead. */ static const struct nla_policy hsr_genl_policy[HSR_A_MAX + 1] = { - [HSR_A_NODE_ADDR] = { .type = NLA_BINARY, .len = ETH_ALEN }, - [HSR_A_NODE_ADDR_B] = { .type = NLA_BINARY, .len = ETH_ALEN }, + [HSR_A_NODE_ADDR] = { .len = ETH_ALEN }, + [HSR_A_NODE_ADDR_B] = { .len = ETH_ALEN }, [HSR_A_IFINDEX] = { .type = NLA_U32 }, [HSR_A_IF1_AGE] = { .type = NLA_U32 }, [HSR_A_IF2_AGE] = { .type = NLA_U32 }, |
