diff options
| author |   Alexander Aring <aring@mojatatu.com> | 2018-11-29 17:41:54 -0500 |
|---|---|---|
| committer |   Stefan Schmidt <stefan@datenfreihafen.org> | 2018-12-02 11:08:46 +0100 |
| commit | a73d4e1490913b76b292f91553b7ba08a65caa3f (patch) | |
| tree | 525b9816d5c0af67941cbc0be7e381f4819b3537 /drivers/net/ieee802154 | |
| parent | tun: forbid iface creation with rtnl ops (diff) | |
| download | linux-dev-a73d4e1490913b76b292f91553b7ba08a65caa3f.tar.xz linux-dev-a73d4e1490913b76b292f91553b7ba08a65caa3f.zip | |
ieee802154: hwsim: fix off-by-one in parse nested
This patch fixes a off-by-one mistake in nla_parse_nested() functions of
mac802154_hwsim driver. I had to enabled stack protector so I was able
to reproduce it.
Reference: https://github.com/linux-wpan/wpan-tools/issues/17
Signed-off-by: Alexander Aring <aring@mojatatu.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Diffstat (limited to 'drivers/net/ieee802154')
| -rw-r--r-- | drivers/net/ieee802154/mac802154_hwsim.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ieee802154/mac802154_hwsim.c b/drivers/net/ieee802154/mac802154_hwsim.c index 51b5198d5943..b6743f03dce0 100644 --- a/drivers/net/ieee802154/mac802154_hwsim.c +++ b/drivers/net/ieee802154/mac802154_hwsim.c @@ -492,7 +492,7 @@ static int hwsim_del_edge_nl(struct sk_buff *msg, struct genl_info *info) !info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE]) return -EINVAL; - if (nla_parse_nested(edge_attrs, MAC802154_HWSIM_EDGE_ATTR_MAX + 1, + if (nla_parse_nested(edge_attrs, MAC802154_HWSIM_EDGE_ATTR_MAX, info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE], hwsim_edge_policy, NULL)) return -EINVAL; @@ -542,7 +542,7 @@ static int hwsim_set_edge_lqi(struct sk_buff *msg, struct genl_info *info) !info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE]) return -EINVAL; - if (nla_parse_nested(edge_attrs, MAC802154_HWSIM_EDGE_ATTR_MAX + 1, + if (nla_parse_nested(edge_attrs, MAC802154_HWSIM_EDGE_ATTR_MAX, info->attrs[MAC802154_HWSIM_ATTR_RADIO_EDGE], hwsim_edge_policy, NULL)) return -EINVAL; |