CVE-2026-98304 (GCVE-0-2026-98304)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:46 – Updated: 2026-10-06 08:46
VLAI
Title
net: bcmgenet: restore the hardware filters on open
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3e370952287c55e5fd240cb8bb41ef8acff8829d , < 56db7ec462d6a2b886e299ad835109c089606969 (git)
Affected: 3e370952287c55e5fd240cb8bb41ef8acff8829d , < 906140955c8debde65afe12e594e04c49a61b0d9 (git)
Affected: 3e370952287c55e5fd240cb8bb41ef8acff8829d , < 23ca4ddc4fce2c233a49e9fd34d4b5b02bd7324e (git)
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Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 6.18.54 , ≤ 6.18.* (semver)
Unaffected: 7.2.8 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)
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{
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: restore the hardware filters on open\n\nbcmgenet_hfb_init() runs INIT_LIST_HEAD() on priv-\u003erxnfc_list, which drops\nevery rule off the list, and bcmgenet_open() calls it on each ifup. Every\nrule the user configured is silently lost:\n\n  # ethtool -N eth0 flow-type ether dst $MAC action 0\n  Added rule with ID 0\n  # ethtool -n eth0 | grep -c Filter:\n  1\n  # ip link set eth0 down \u0026\u0026 ip link set eth0 up\n  # ethtool -n eth0 | grep -c Filter:\n  0\n\nInitialise the lists once at probe and restore the rules on open, as\nbcmgenet_resume() already does."
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    "dateReserved": "2026-09-25T10:25:14.338Z",
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          }
        ],
        "id": "CVE-2026-98304",
        "lastModified": "2026-10-06T09:18:21.520",
        "metrics": {},
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      "id": "CVE-2026-98304",
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      "product_status:known_affected": "204",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-98304",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-98304.json",
      "version": "2"
    }
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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