diff options
| author |   Jamal Hadi Salim <jhs@mojatatu.com> | 2026-05-25 08:25:52 -0400 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2026-05-28 12:26:36 +0200 |
| commit | db875221ab08d213a83bf30196ae8b64d55a3403 (patch) | |
| tree | 1f3ae7de53efd7f9d9ab7457d5c4921973451a4f /include/linux/surface_aggregator/ssh:/git@git.zx2c4.com | |
| parent | net/sched: fix packet loop on netem when duplicate is on (diff) | |
net/sched: Fix ethx:ingress -> ethy:egress -> ethx:ingress mirred loop
When mirred redirects to ingress (from either ingress or egress) the loop
state from sched_mirred_dev array dev is lost because of 1) the packet
deferral into the backlog and 2) the fact the sched_mirred_dev array is
cleared. In such cases, if there was a loop we won't discover it.
Here's a simple test to reproduce:
ip a add dev port0 10.10.10.11/24
tc qdisc add dev port0 clsact
tc filter add dev port0 egress protocol ip \
prio 10 matchall action mirred ingress redirect dev port1
tc qdisc add dev port1 clsact
tc filter add dev port1 ingress protocol ip \
prio 10 matchall action mirred egress redirect dev port0
ping -c 1 -W0.01 10.10.10.10
Fixes: fe946a751d9b ("net/sched: act_mirred: add loop detection")
Tested-by: Victor Nogueira <victor@mojatatu.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20260525122556.973584-6-jhs@mojatatu.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include/linux/surface_aggregator/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions