CVE-2026-72495

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Avoid repeated requests to allocate WC pages Applications can request multiple WC pages for the same ucontext. As of now, only 1 WC page per ucontext is supported. Add a lock to avoid concurrent access and a check to fail repeated requests. Also, if the mmap entry insert fails for the WC, free the Doorbell page index mapped for the WC page.

Severity

CRITICAL

CVSS score

9.3 (v3.1)

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-08-15 06:22:23.840000

Last modified

2026-10-21 13:19:39.317000

View original CVE JSON

{
  "id": "CVE-2026-72495",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-08-15T06:22:23.840",
  "lastModified": "2026-10-21T13:19:39.317",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Avoid repeated requests to allocate WC pages\n\nApplications can request multiple WC pages for the same ucontext.\nAs of now, only 1 WC page per ucontext is supported. Add a lock to\navoid concurrent access and a check to fail repeated requests.\nAlso, if the mmap entry insert fails for the WC, free the Doorbell\npage index mapped for the WC page."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/infiniband/hw/bnxt_re/ib_verbs.c",
            "drivers/infiniband/hw/bnxt_re/ib_verbs.h",
            "drivers/infiniband/hw/bnxt_re/uapi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "360da60d6c6edb9740de7a8e6d8969d62ceff956",
              "lessThan": "8e59bd37d6d63a06ed452eaffe6c9d4ad903af7b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "360da60d6c6edb9740de7a8e6d8969d62ceff956",
              "lessThan": "00c71846874fea4917961236e49287a1850dcf98",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "360da60d6c6edb9740de7a8e6d8969d62ceff956",
              "lessThan": "478c4d24193fe3e6aa2accd4874ae43000e4a217",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "360da60d6c6edb9740de7a8e6d8969d62ceff956",
              "lessThan": "da406b8b49c1dfe661a497483940d7ee781430db",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "360da60d6c6edb9740de7a8e6d8969d62ceff956",
              "lessThan": "441baa79043431807115fd030d7d0bb14ed441a0",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/infiniband/hw/bnxt_re/ib_verbs.c",
            "drivers/infiniband/hw/bnxt_re/ib_verbs.h",
            "drivers/infiniband/hw/bnxt_re/uapi.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.5",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.5",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.114",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.40",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.1.5",
              "lessThanOrEqual": "7.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-16T18:51:00.430753Z",
          "id": "CVE-2026-72495",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/00c71846874fea4917961236e49287a1850dcf98",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/441baa79043431807115fd030d7d0bb14ed441a0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/478c4d24193fe3e6aa2accd4874ae43000e4a217",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8e59bd37d6d63a06ed452eaffe6c9d4ad903af7b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/da406b8b49c1dfe661a497483940d7ee781430db",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}