{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-98272",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-98272"
  ],
  "published": "2026-10-06T08:47:10Z",
  "summary": "net: mvpp2: prevent buffer overflow in page_pool allocation",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mvpp2: prevent buffer overflow in page_pool allocation\n\nThe per\u2011processor buffering scheme is supported only if the\nnumber of pools (nrxqs\u202f*\u202f2) does not exceed MVPP2_BM_MAX_POOLS (8).\nThis is already checked in mvpp2_probe() during the initial\nactivation of percpu_pools.\n\nHowever, mvpp2_change_mtu() may later call\nmvpp2_bm_switch_buffers(priv, true) without this check, which can\nlead to an out-of-bounds access in the priv->page_pool array in\nmvpp2_bm_init(). The array is sized to hold MVPP2_PORT_MAX_RXQ\nentries, and mvpp2_get_nrxqs() may return exactly that value. The\nper-CPU scheme then doubles it to nrxqs * 2, exceeding the array\nbounds.\n\nCheck that the hardware version is MVPP22 or newer and that the\nnumber of pools (nrxqs * 2) does not exceed MVPP2_BM_MAX_POOLS\nbefore switching to per-CPU mode.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.189",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-98272"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/dfd46b5584a5881b131008767950e1ab82713c8c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e7f30dcfa6c64033bf9137362517bd248e5be384"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f0e7d62c1eb984dd204095118973c59604144cd8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1734c3fc0066e228ce1c11e434b7c2527f0a949a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/14cb1e7702e5cb3c58888f6aed498381a73927d2"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-06T08:47:10Z"
  }
}