On Mon, Nov 04, 2019 at 10:00:16AM +0100, Markus Theil wrote:
> 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>
> ---
> net/wireless/nl80211.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
> index 105fdd8589d7..a9df1301436e 100644
> --- a/net/wireless/nl80211.c
> +++ b/net/wireless/nl80211.c
> @@ -259,7 +259,8 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
> [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 },
Many thanks for the backport, now queued up.
greg k-h
