[PATTCH net v6 0/5] netem bug fixes

[Stephen Hemminger <stephen@networkplumber.org>]

These bugs were found when doing AI assisted  review of sch_netem.c
during investigation of the packet duplication recursion problem
addressed in Jamal's series.

The fixes cover:

 - probability gaps in the 4-state Markov loss model
 - queue limit not accounting for reordered packets
 - PRNG reseeded on every tc change, breaking reproducibility
 - slot delay configuration not validated for inverted ranges
 - slot delay arithmetic overflow for ranges above ~2.1 seconds

v6 - drop 3 unnecessary patches; focus on real bugs.

Stephen Hemminger (5):
  net/sched: netem: fix probability gaps in 4-state loss model
  net/sched: netem: fix queue limit check to include reordered packets
  net/sched: netem: only reseed PRNG when seed is explicitly provided
  net/sched: netem: check for invalid slot range
  net/sched: netem: fix slot delay calculation overflow

 net/sched/sch_netem.c | 43 +++++++++++++++++++++++++++++++------------
 1 file changed, 31 insertions(+), 12 deletions(-)

-- 
2.53.0