CVE-2026-98792 (GCVE-0-2026-98792)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:48 – Updated: 2026-10-21 12:57
VLAI
Title
netfilter: flowtable: generalize pending status bit
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: generalize pending status bit Rename NF_FLOW_HW_PENDING to NF_FLOW_PENDING and use it to inhibit the flowtable GC worker until pending hw offload work has been completed. Apparently, nf_flow_offload_stats() can schedule work to retrieve stats while the flow is being removed by GC. And this bit can also be used in a follow up patch to disable GC until the flow has been fully added in both directions. Revert the reordering done in commit d644b23afe1e ("netfilter: flowtable: publish HW_DEAD after worker is done") to prevent a race between GC and hw offload handler.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6820 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2c8897953f3b2ff5498f3f275708a742bfcdbc24 , < f7e292f3c8c853f27a1af7eaf3428a0e76fe5fcc (git)
Affected: 2c8897953f3b2ff5498f3f275708a742bfcdbc24 , < 4d52b72f3aa68ad0536444e36530bda75070194c (git)
Affected: 2c8897953f3b2ff5498f3f275708a742bfcdbc24 , < 4033e1a9262c57dfbfc594a591a50fcba63c531a (git)
Affected: 2c8897953f3b2ff5498f3f275708a742bfcdbc24 , < a2cac45848d1cf31ed190db30f90ba8211e9a8ca (git)
Affected: 2c8897953f3b2ff5498f3f275708a742bfcdbc24 , < 7c549fb7eecd01fdba7c0d12c01da876ef8a3214 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.113 , ≤ 6.12.* (semver)
Unaffected: 6.18.56 , ≤ 6.18.* (semver)
Unaffected: 7.2.10 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/net/netfilter/nf_flow_table.h",
            "net/netfilter/nf_flow_table_core.c",
            "net/netfilter/nf_flow_table_offload.c",
            "net/sched/act_ct.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f7e292f3c8c853f27a1af7eaf3428a0e76fe5fcc",
              "status": "affected",
              "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
              "versionType": "git"
            },
            {
              "lessThan": "4d52b72f3aa68ad0536444e36530bda75070194c",
              "status": "affected",
              "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
              "versionType": "git"
            },
            {
              "lessThan": "4033e1a9262c57dfbfc594a591a50fcba63c531a",
              "status": "affected",
              "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
              "versionType": "git"
            },
            {
              "lessThan": "a2cac45848d1cf31ed190db30f90ba8211e9a8ca",
              "status": "affected",
              "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
              "versionType": "git"
            },
            {
              "lessThan": "7c549fb7eecd01fdba7c0d12c01da876ef8a3214",
              "status": "affected",
              "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/net/netfilter/nf_flow_table.h",
            "net/netfilter/nf_flow_table_core.c",
            "net/netfilter/nf_flow_table_offload.c",
            "net/sched/act_ct.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "lessThan": "5.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.160",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.113",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.56",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.10",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "5.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: flowtable: generalize pending status bit\n\nRename NF_FLOW_HW_PENDING to NF_FLOW_PENDING and use it to inhibit the\nflowtable GC worker until pending hw offload work has been completed.\n\nApparently, nf_flow_offload_stats() can schedule work to retrieve stats\nwhile the flow is being removed by GC.\n\nAnd this bit can also be used in a follow up patch to disable GC until\nthe flow has been fully added in both directions.\n\nRevert the reordering done in commit d644b23afe1e (\"netfilter:\nflowtable: publish HW_DEAD after worker is done\") to prevent a race\nbetween GC and hw offload handler."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:57:01.669Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f7e292f3c8c853f27a1af7eaf3428a0e76fe5fcc"
        },
        {
          "url": "https://git.kernel.org/stable/c/4d52b72f3aa68ad0536444e36530bda75070194c"
        },
        {
          "url": "https://git.kernel.org/stable/c/4033e1a9262c57dfbfc594a591a50fcba63c531a"
        },
        {
          "url": "https://git.kernel.org/stable/c/a2cac45848d1cf31ed190db30f90ba8211e9a8ca"
        },
        {
          "url": "https://git.kernel.org/stable/c/7c549fb7eecd01fdba7c0d12c01da876ef8a3214"
        }
      ],
      "title": "netfilter: flowtable: generalize pending status bit",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98792",
    "datePublished": "2026-10-18T15:48:31.098Z",
    "dateReserved": "2026-09-25T10:25:14.370Z",
    "dateUpdated": "2026-10-21T12:57:01.669Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-98792",
      "date": "2026-11-02",
      "epss": "0.00168",
      "percentile": "0.06011"
    },
    "microsoft_vex": {
      "current_release_date": "2026-11-01T14:56:10.000Z",
      "cve": "CVE-2026-98792",
      "id": "msrc_CVE-2026-98792",
      "initial_release_date": "2026-10-20T01:06:48.000Z",
      "product_status:known_affected": "2",
      "product_status:under_investigation": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "netfilter: flowtable: generalize pending status bit",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-98792.json",
      "version": "3"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "include/net/netfilter/nf_flow_table.h",
                  "net/netfilter/nf_flow_table_core.c",
                  "net/netfilter/nf_flow_table_offload.c",
                  "net/sched/act_ct.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "f7e292f3c8c853f27a1af7eaf3428a0e76fe5fcc",
                    "status": "affected",
                    "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "4d52b72f3aa68ad0536444e36530bda75070194c",
                    "status": "affected",
                    "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "4033e1a9262c57dfbfc594a591a50fcba63c531a",
                    "status": "affected",
                    "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "a2cac45848d1cf31ed190db30f90ba8211e9a8ca",
                    "status": "affected",
                    "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "7c549fb7eecd01fdba7c0d12c01da876ef8a3214",
                    "status": "affected",
                    "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "include/net/netfilter/nf_flow_table.h",
                  "net/netfilter/nf_flow_table_core.c",
                  "net/netfilter/nf_flow_table_offload.c",
                  "net/sched/act_ct.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.7"
                  },
                  {
                    "lessThan": "5.7",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.160",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.113",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.56",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.2.*",
                    "status": "unaffected",
                    "version": "7.2.10",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.3",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: flowtable: generalize pending status bit\n\nRename NF_FLOW_HW_PENDING to NF_FLOW_PENDING and use it to inhibit the\nflowtable GC worker until pending hw offload work has been completed.\n\nApparently, nf_flow_offload_stats() can schedule work to retrieve stats\nwhile the flow is being removed by GC.\n\nAnd this bit can also be used in a follow up patch to disable GC until\nthe flow has been fully added in both directions.\n\nRevert the reordering done in commit d644b23afe1e (\"netfilter:\nflowtable: publish HW_DEAD after worker is done\") to prevent a race\nbetween GC and hw offload handler."
          }
        ],
        "id": "CVE-2026-98792",
        "lastModified": "2026-10-21T13:21:46.803",
        "metrics": {},
        "published": "2026-10-18T16:17:33.183",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/4033e1a9262c57dfbfc594a591a50fcba63c531a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/4d52b72f3aa68ad0536444e36530bda75070194c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/7c549fb7eecd01fdba7c0d12c01da876ef8a3214"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/a2cac45848d1cf31ed190db30f90ba8211e9a8ca"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f7e292f3c8c853f27a1af7eaf3428a0e76fe5fcc"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-10-23T15:23:06+00:00",
      "cve": "CVE-2026-98792",
      "id": "CVE-2026-98792",
      "initial_release_date": "2026-10-18T00:00:00+00:00",
      "product_status:known_affected": "236",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: flowtable: generalize pending status bit",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98792.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.

Sightings

Author Source Type Date Other

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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.