CVE-2026-98806

Status: ReceivedUnscored—

Severity—Unscored

Exploitation probability0.18 %higher than 7% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

In the Linux kernel, the following vulnerability has been resolved:

octeontx2-pf: Fix aura BPID assignment when CONFIG_DCB is enabled

Previously, BPID assignment under CONFIG_DCB assumed `queue_to_pfc_map` was always initialized. For SDP VFs this leads to invalid memory access as it was not initialized.

This patch adds a NULL check for `queue_to_pfc_map` before dereferencing it. Also, simplifies the logic by always assigning a default BPID first, then conditionally overriding it if CONFIG_DCB is enabled and the map exists.

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: 0.18 %
Percentile among all scored CVEs: 7
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

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Raw JSON (NVD)

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{
  "id": "CVE-2026-98806",
  "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": "184fb40f731bd3353b0887731f7caba66609e9cd",
              "lessThan": "59fbbded05e559675930fd521b8d62b72828b52d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "184fb40f731bd3353b0887731f7caba66609e9cd",
              "lessThan": "056994563935e049093f100efaad7e63ad113814",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "22079d5ae4a33679150f7de89f4107f4e0446886",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6.14.9",
              "lessThan": "6.15",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/nic/cn20k.c",
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c",
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.15",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/marvell/octeontx2/nic/cn20k.c",
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c",
            "drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:34.683",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/056994563935e049093f100efaad7e63ad113814",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/59fbbded05e559675930fd521b8d62b72828b52d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: Fix aura BPID assignment when CONFIG_DCB is enabled\n\nPreviously, BPID assignment under CONFIG_DCB assumed\n`queue_to_pfc_map` was always initialized. For SDP VFs this leads to\ninvalid memory access as it was not initialized.\n\nThis patch adds a NULL check for `queue_to_pfc_map` before\ndereferencing it. Also, simplifies the logic by always assigning a\ndefault BPID first, then conditionally overriding it if CONFIG_DCB is\nenabled and the map exists."
    }
  ],
  "lastModified": "2026-10-19T10:19:44.660",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}