CVE-2026-98792

Status: ReceivedUnscored—

Severity—Unscored

Exploitation probability0.17 %higher than 6% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

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.

CVSS

NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.17 %
Percentile among all scored CVEs: 6
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Linux — Linux Kernel^AI

References

Show 4 references

Raw JSON (NVD)

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{
  "id": "CVE-2026-98792",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
              "lessThan": "4d52b72f3aa68ad0536444e36530bda75070194c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
              "lessThan": "4033e1a9262c57dfbfc594a591a50fcba63c531a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
              "lessThan": "a2cac45848d1cf31ed190db30f90ba8211e9a8ca",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2c8897953f3b2ff5498f3f275708a742bfcdbc24",
              "lessThan": "7c549fb7eecd01fdba7c0d12c01da876ef8a3214",
              "versionType": "git"
            }
          ],
          "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"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.7"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.7",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "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"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:33.183",
  "references": [
    {
      "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"
    }
  ],
  "vulnStatus": "Received",
  "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."
    }
  ],
  "lastModified": "2026-10-19T10:19:43.223",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}