Commit 1fab1b89 authored Oct 29, 2019 by Markus Theil Committed by Johannes Berg Oct 30, 2019

nl80211: fix validation of mesh path nexthop



Mesh path nexthop should be a ethernet address, but current validation
checks against 4 byte integers.

Cc: stable@vger.kernel.org
Fixes: 2ec600d6 ("nl80211/cfg80211: support for mesh, sta dumping")
Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Link: https://lore.kernel.org/r/20191029093003.10355-1-markus.theil@tu-ilmenau.de


Signed-off-by: Johannes Berg <johannes.berg@intel.com>

parent ec649fed

net/wireless/nl80211.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -393,7 +393,7 @@ const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
		[NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
		[NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
		.len = IEEE80211_MAX_MESH_ID_LEN },
		[NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
		[NL80211_ATTR_MPATH_NEXT_HOP] = NLA_POLICY_ETH_ADDR_COMPAT,

		[NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
		[NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },

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