From: Markus Theil <markus.theil@xxxxxxxxxxxxx>
commit 1fab1b89e2e8f01204a9c05a39fd0b6411a48593 upstream.
Mesh path nexthop should be a ethernet address, but current validation
checks against 4 byte integers.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 2ec600d672e74 ("nl80211/cfg80211: support for mesh, sta dumping")
Signed-off-by: Markus Theil <markus.theil@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20191029093003.10355-1-markus.theil@xxxxxxxxxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/wireless/nl80211.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -284,7 +284,8 @@ static const struct nla_policy nl80211_p
[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] = { .type = NLA_BINARY,
+ .len = ETH_ALEN },
[NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
[NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
