eth: nfp: drop the replaced rule from the list when reprogramming fails

{
  "id": "433347b3db8c6b1a7dc818d38f38f810a8eeaacf31924fdcd11cb7f79c5b2f55",
  "url": "https://osv.dev/vulnerability/CVE-2026-98028",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "eth: nfp: drop the replaced rule from the list when reprogramming fails",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: eth: nfp: drop the replaced rule from the list when reprogramming fails nfp_net_fs_add() replaces an existing rule by deleting it from the hardware, decrementing nn->fs.count and programming the new one. If nfp_net_fs_add_hw() fails the old entry stays on nn->fs.list - only the success path reaches list_replace() - so the list is one longer than nn->fs.count, and it advertises a rule whose hardware entry has already been torn down. nn->fs.count is what ETHTOOL_GRXCLSRLCNT reports, so userspace then sizes its buffer one entry short of what the GRXCLSRLALL walk wants to write. That used to overwrite one u32 past the allocation; since the walk is bounded it is a permanent -EMSGSIZE instead, as nothing ever resyncs the counter.",
    "evidence": "osv:CVE-2026-98028",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.111",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.53",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-98028",
      "aliases": [
        "CVE-2026-98028"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9eb03bb1c035ff6e2c3a34046419446588253dda"
                },
                {
                  "fixed": "603b70093f729f52a37544b48679903cad834856"
                },
                {
                  "fixed": "edaec279f59f801a05b751df475ed71a0a68c88a"
                },
                {
                  "fixed": "552e528a7d85cbe088b2ae4f78194713975b46cf"
                },
                {
                  "fixed": "108bb2142e3a12c9ad625ad662973127a113ddc6"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98028.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.8.0"
                },
                {
                  "fixed": "6.12.111"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.53"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.2.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98028.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.125488513Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/108bb2142e3a12c9ad625ad662973127a113ddc6",
        "https://git.kernel.org/stable/c/552e528a7d85cbe088b2ae4f78194713975b46cf",
        "https://git.kernel.org/stable/c/603b70093f729f52a37544b48679903cad834856",
        "https://git.kernel.org/stable/c/edaec279f59f801a05b751df475ed71a0a68c88a",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98028.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-98028",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98028.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-98028",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 490679,
  "published_at": "2026-09-25T10:23:45.737+00:00"
}