CVE-2026-98304
Received
Received - Intake
Kernel Filter Loss on Interface Restart in BCM GENET
Vulnerability report for CVE-2026-98304, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-06
Last updated on: 2026-10-06
Assigner: kernel.org
Description
Description
In the Linux kernel, the following vulnerability has been resolved:
net: bcmgenet: restore the hardware filters on open
bcmgenet_hfb_init() runs INIT_LIST_HEAD() on priv->rxnfc_list, which drops
every rule off the list, and bcmgenet_open() calls it on each ifup. Every
rule the user configured is silently lost:
# ethtool -N eth0 flow-type ether dst $MAC action 0
Added rule with ID 0
# ethtool -n eth0 | grep -c Filter:
1
# ip link set eth0 down && ip link set eth0 up
# ethtool -n eth0 | grep -c Filter:
0
Initialise the lists once at probe and restore the rules on open, as
bcmgenet_resume() already does.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | 3e370952287c55e5fd240cb8bb41ef8acff8829d |
| Linux | Linux | 3e370952287c55e5fd240cb8bb41ef8acff8829d |
| Linux | Linux | 3e370952287c55e5fd240cb8bb41ef8acff8829d |
| Linux | Linux | 5.8 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
