CVE-2026-98304
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.
Affected versions
Linux kernel versions
5.8
and later are affected. Fixed in
6.18.54,
7.2.8,
7.3-rc4
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-98304?
CVE-2026-98304 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.8 onward and has been patched in 6.18.54, 7.2.8 and 7.3-rc4. CVE-2026-98304 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-98304?
Yes. CVE-2026-98304 has been patched. Fixed versions include 6.18.54, 7.2.8 and 7.3-rc4. If you are running Linux kernel 5.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98304 actively exploited?
No. CVE-2026-98304 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.