midasmatterhorn ca2f5dbcee collab: refuse sequence numbers a host cannot advance ...

The welcome's seq and processed.last_batch are the host's word and were used
unchecked: accepted computed self.seq + 1 and queue bumped next_batch, so a
host sending u64::MAX overflowed the client (panic in debug, wrap in release).
Both counters now step with checked_add/saturating_add, and a sequence that
cannot advance is refused as a protocol error (the established rejoin path).

Test: hostile_sequence_numbers_do_not_overflow_the_client.

2026-10-14 22:47:51 +03:00

..

src

collab: refuse sequence numbers a host cannot advance

2026-10-14 22:47:51 +03:00

Cargo.toml

M9: collaboration: per-user undo, rejections, reconnect (#105)

2026-10-11 03:19:24 +07:00