CVE-2026-98426

Status: ReceivedUnscored—

Severity—Unscored

Exploitation probability0.22 %higher than 12% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

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

wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path

mwifiex_pcie_request_irq() registers each MSI-X vector with a per-index dev_id (&card->msix_ctx[i]). On a request_irq() failure the cleanup loop "for (j = 0; j < i; j++)" frees msix_entries[j].vector but passes the failed index's &card->msix_ctx[i] as the dev_id. free_irq() matches on (irq, dev_id), so it fails to find the action registered with &card->msix_ctx[j]: the already-requested IRQ j is not freed (leaked) and free_irq() warns about freeing a non-existent IRQ. Use &card->msix_ctx[j].

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: 0.22 %
Percentile among all scored CVEs: 12
Score date: 10/21/2026

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 8 references

Raw JSON (NVD)

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{
  "id": "CVE-2026-98426",
  "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": "99074fc1e67b374b5c72406a23ac01fed806d634",
              "lessThan": "11bc2cbb14f450eaa47cce9eb086f948ef8f4bcd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
              "lessThan": "1a60cb2292194cc9eafae7ca8a8a72d37ae78d97",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
              "lessThan": "fcac5813f324cd07dfd36b4adf624fc70f7587d6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
              "lessThan": "2761b21cb896b1da8dd46cee5084c9032b2d7098",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
              "lessThan": "5fd4cc87e6cc0839aac89c24ebe39ce262fe088f",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
              "lessThan": "0969c9688389f2e0f65b1a924b0dd6625a3bb776",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
              "lessThan": "03d5e4776e8b71c2468c5c3c48b39202c87a8796",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "99074fc1e67b374b5c72406a23ac01fed806d634",
              "lessThan": "a3d722190cdef18da4878b5efc27c3c386dda248",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/marvell/mwifiex/pcie.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.6"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.6",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.54",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.8",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/marvell/mwifiex/pcie.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-14T14:17:54.220",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/03d5e4776e8b71c2468c5c3c48b39202c87a8796",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/0969c9688389f2e0f65b1a924b0dd6625a3bb776",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/11bc2cbb14f450eaa47cce9eb086f948ef8f4bcd",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1a60cb2292194cc9eafae7ca8a8a72d37ae78d97",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2761b21cb896b1da8dd46cee5084c9032b2d7098",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5fd4cc87e6cc0839aac89c24ebe39ce262fe088f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a3d722190cdef18da4878b5efc27c3c386dda248",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fcac5813f324cd07dfd36b4adf624fc70f7587d6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path\n\nmwifiex_pcie_request_irq() registers each MSI-X vector with a per-index\ndev_id (&card->msix_ctx[i]). On a request_irq() failure the cleanup loop\n\"for (j = 0; j < i; j++)\" frees msix_entries[j].vector but passes the\nfailed index's &card->msix_ctx[i] as the dev_id. free_irq() matches on\n(irq, dev_id), so it fails to find the action registered with\n&card->msix_ctx[j]: the already-requested IRQ j is not freed (leaked) and\nfree_irq() warns about freeing a non-existent IRQ. Use &card->msix_ctx[j]."
    }
  ],
  "lastModified": "2026-10-19T10:18:49.173",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}