Sven EckelmannandGreg Kroah-Hartman d026ef8d0e batman-adv: tp_meter: handle overlapping packets
commit cbde75c38b upstream.

If the size of the packets would change during the transmission, it could
happen that some retries of packets are overlapping. In this case, precise
comparisons of sequence numbers by the receiver would be wrong. It is then
necessary to check if the start sequence number to the end sequence number
("seqno + length") would contain a new range.

If this is the case then this is enough to accept this packet. In all other
cases, the packet still has to be dropped (and not acked).

Cc: stable@kernel.org
Fixes: 33a3bb4a33 ("batman-adv: throughput meter implementation")
[ Switch to pre-splitted tp_vars structure names ]
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-07-04 13:41:30 +02:00
2026-07-04 13:41:29 +02:00
2026-07-04 13:41:29 +02:00
2026-06-19 13:37:33 +02:00

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