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[net,v3,0/4] net_sched: two security bug fixes and test cases

Message ID 20250204005841.223511-1-xiyou.wangcong@gmail.com (mailing list archive)
Headers show
Series net_sched: two security bug fixes and test cases | expand

Message

Cong Wang Feb. 4, 2025, 12:58 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.

---
v3: added Fixes tag for patch 1/4
    removed a redudant ip link add/del in patch 2/4 (thanks to Pedro Tammela)

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      | 23 +++++++++++++
 4 files changed, 60 insertions(+), 2 deletions(-)