Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: 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
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 906736728cea480a85803c67fafb1b0e78491922 before 66f4607fe788fc7d81bce0e2f7b3726ed2f71284; affected fe946a751d9b52b7c45ca34899723b314b79b249 before 45ac526a0d5733c3695946bd84ec57f24d8f5e66; affected fe946a751d9b52b7c45ca34899723b314b79b249 before db875221ab08d213a83bf30196ae8b64d55a3403 |
| Linux / Linux | affected 6.19; unaffected 0 before 6.19; unaffected 7.0.12 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.