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
References
Configurations
Configuration 1 (hide)
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History
12 Nov 2026, 17:37
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | NVD-CWE-noinfo | |
| References | () https://git.kernel.org/stable/c/45ac526a0d5733c3695946bd84ec57f24d8f5e66 - Patch | |
| References | () https://git.kernel.org/stable/c/66f4607fe788fc7d81bce0e2f7b3726ed2f71284 - Patch | |
| References | () https://git.kernel.org/stable/c/db875221ab08d213a83bf30196ae8b64d55a3403 - Patch | |
| First Time |
Linux linux Kernel
Linux |
Information
Published : 2026-07-19 16:17
Updated : 2026-11-12 17:37
NVD link : CVE-2026-63982
Mitre link : CVE-2026-63982
CVE.ORG link : CVE-2026-63982
JSON object : View
Products Affected
linux
- linux_kernel
CWE