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mac80211 mesh code - not checking mesh config validity?

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Hi,

Just looked at some MLME stuff and noticed that apparently the
mesh-config IE is never checked for having a correct length so if it is
less than 17 bytes long we could even overrun the SKB when memcpy'ing
the data into bss->mesh_cfg.

Maybe a (packed) structure should be used for the bss->mesh_cfg member
so access to it is easier?

Could you take a look and fix this if necessary?

johannes

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