{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-93115",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-93115"
  ],
  "published": "2026-09-17T16:10:40Z",
  "summary": "platform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/mellanox: mlxbf-pmc: Check ACPI_COMPANION() against NULL\n\nEvery platform driver can be forced to match a device that doesn't match\nits list of device IDs because of device_match_driver_override(), so\nplatform drivers that rely on the existence of a device's ACPI companion\nobject need to verify its presence.\n\nmlxbf_pmc_probe() passes the result of ACPI_COMPANION() to\nacpi_device_hid(), which dereferences it, so force-binding the driver to\na device without an ACPI companion leads to a NULL pointer dereference.\n\nAccordingly, add a requisite ACPI_COMPANION() check against NULL to the\nmlxbf-pmc driver and return -ENODEV when the companion is missing.",
  "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": "6.1.188",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-93115"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/950d8e8375f3ff4787de51b7bdf8dd23a3ad6547"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fdfb736282b9665c0169df0c4152ec91fdea2767"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bf1e0cc5cc1d4e71b699fc98cc9198ead0ed53e0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a75b84119e56fc34b0f1403f3b93d357a55dabb6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/71ba8b6e28f7a83b724036f5de07e03bb5473286"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d25dd08268aeaceb485189aaa84aa6d68a460291"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c38cce70adef874c2a7b5132c14d6c221401deff"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-17T16:10:40Z"
  }
}