Hi Dan,
> NEXTHDR_MAX is 255. What happens here is that we take a u8 value
> "hdr->nexthdr" from the network and then look it up in
> lowpan_nexthdr_nhcs[]. The problem is that if hdr->nexthdr is 0xff then
> we read one element beyond the end of the array so the array needs to
> be one element larger.
>
> Fixes: 92aa7c65d295 ("6lowpan: add generic nhc layer interface")
> Signed-off-by: Dan Carpenter <[email protected]>
> ---
> This is the only place which uses the NEXTHDR_MAX define, so I considered
> changing that to 256 instead. Either fix would work.
>
> net/6lowpan/nhc.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
patch has been applied to bluetooth-next tree.
Regards
Marcel