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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>
hifive-unleashed-5.1
Alexander Aring 2018-11-29 17:41:54 -05:00 committed by Stefan Schmidt
parent 35b827b6d0
commit a73d4e1490
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ieee802154/mac802154_hwsim.c
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@ -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;