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[net,v2,0/4] net_sched: two security bug fixes and test cases

Message ID 20250126041224.366350-1-xiyou.wangcong@gmail.com (mailing list archive)
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Series net_sched: two security bug fixes and test cases | expand

Message

Cong Wang Jan. 26, 2025, 4:12 a.m. UTC 
From: Cong Wang <cong.wang@bytedance.com>

This patchset contains two bug fixes reported in security mailing list,
and test cases for both of them.

---
v2: replaced dummy2 with $DUMMY in pfifo_head_drop test
    reduced the number of ping's in pfifo_head_drop test
    improved commit messages

Cong Wang (2):
  netem: update sch->q.qlen before qdisc_tree_reduce_backlog()
  selftests/tc-testing: add a test case for qdisc_tree_reduce_backlog()

Quang Le (2):
  pfifo_tail_enqueue: Drop new packet when sch->limit == 0
  selftests/tc-testing: Add a test case for pfifo_head_drop qdisc when
    limit==0

 net/sched/sch_fifo.c                          |  3 ++
 net/sched/sch_netem.c                         |  2 +-
 .../tc-testing/tc-tests/infra/qdiscs.json     | 34 ++++++++++++++++++-
 .../tc-testing/tc-tests/qdiscs/fifo.json      | 25 ++++++++++++++
 4 files changed, 62 insertions(+), 2 deletions(-)