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CVE-2026-98199

Estado: RecibidaSin puntuar—

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

hwmon: (pmbus/core) increase number of phases and add new mask

Increase the number of phases to 16 as a new upcoming device supports such a number.

While at it, add a new mask for controlling the source of the output voltage.

Note (groeck):

This patch was meant to prepare for support of MAX20826 and compatible devices, which support more than 10 phases per page. However, Sashiko reports that the mp2975 driver already supports up to 14 phases, and the mp2856 driver supports up to 12 phases. This already has the potential for out-of-bounds writes when probing the affected chips, making this patch a bug fix.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-98199",
  "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": "2c6fcbb211494f1ff6ef384776944b9e04f4c14c",
              "lessThan": "272006a52cbd9c8342cead4d3eb9221ebbe8b985",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2c6fcbb211494f1ff6ef384776944b9e04f4c14c",
              "lessThan": "b32607710a20ad983f9fe4a3051892584c0641a4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2c6fcbb211494f1ff6ef384776944b9e04f4c14c",
              "lessThan": "66368f682a53f3a3842e20eebb571a59809c52c0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2c6fcbb211494f1ff6ef384776944b9e04f4c14c",
              "lessThan": "1ec644c94466834f8cb6b7ba12636fd047bdfdda",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2c6fcbb211494f1ff6ef384776944b9e04f4c14c",
              "lessThan": "9558fc1e042ac6b12dd63c37d2c51be4ec86d402",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2c6fcbb211494f1ff6ef384776944b9e04f4c14c",
              "lessThan": "b49f100a15b8876deccf8c59f41af92b8e25fd74",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2c6fcbb211494f1ff6ef384776944b9e04f4c14c",
              "lessThan": "06bd6794b5fd2163880ac3bfe973d4cc61f359f3",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/hwmon/pmbus/pmbus.h"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.10",
              "versionType": "semver"
            },
            {
              "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-rc4",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/hwmon/pmbus/pmbus.h"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-06T09:18:05.597",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/06bd6794b5fd2163880ac3bfe973d4cc61f359f3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1ec644c94466834f8cb6b7ba12636fd047bdfdda",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/272006a52cbd9c8342cead4d3eb9221ebbe8b985",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/66368f682a53f3a3842e20eebb571a59809c52c0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9558fc1e042ac6b12dd63c37d2c51be4ec86d402",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b32607710a20ad983f9fe4a3051892584c0641a4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b49f100a15b8876deccf8c59f41af92b8e25fd74",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (pmbus/core) increase number of phases and add new mask\n\nIncrease the number of phases to 16 as a new upcoming device supports\nsuch a number.\n\nWhile at it, add a new mask for controlling the source of the output\nvoltage.\n\nNote (groeck):\n\nThis patch was meant to prepare for support of MAX20826 and compatible\ndevices, which support more than 10 phases per page. However, Sashiko\nreports that the mp2975 driver already supports up to 14 phases, and the\nmp2856 driver supports up to 12 phases. This already has the potential for\nout-of-bounds writes when probing the affected chips, making this patch a\nbug fix."
    }
  ],
  "lastModified": "2026-10-06T09:18:05.597",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}