CVE-2025-40157 (GCVE-0-2025-40157)

Vulnerability from cvelistv5 – Published: 2025-11-12 10:23 – Updated: 2026-05-11 21:43
VLAI
Title
EDAC/i10nm: Skip DIMM enumeration on a disabled memory controller
Summary
In the Linux kernel, the following vulnerability has been resolved: EDAC/i10nm: Skip DIMM enumeration on a disabled memory controller When loading the i10nm_edac driver on some Intel Granite Rapids servers, a call trace may appear as follows: UBSAN: shift-out-of-bounds in drivers/edac/skx_common.c:453:16 shift exponent -66 is negative ... __ubsan_handle_shift_out_of_bounds+0x1e3/0x390 skx_get_dimm_info.cold+0x47/0xd40 [skx_edac_common] i10nm_get_dimm_config+0x23e/0x390 [i10nm_edac] skx_register_mci+0x159/0x220 [skx_edac_common] i10nm_init+0xcb0/0x1ff0 [i10nm_edac] ... This occurs because some BIOS may disable a memory controller if there aren't any memory DIMMs populated on this memory controller. The DIMMMTR register of this disabled memory controller contains the invalid value ~0, resulting in the call trace above. Fix this call trace by skipping DIMM enumeration on a disabled memory controller.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6856 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ba987eaaabf99b462cdfed86274e3455d5126349 , < 8100b6c0f9089d5b156642b81270ce27fff17490 (git)
Affected: ba987eaaabf99b462cdfed86274e3455d5126349 , < 1652f14cf3bef5a4baa232de954fc22bdcaa78fe (git)
Affected: ba987eaaabf99b462cdfed86274e3455d5126349 , < c20da24272f1ac79e9f9083bba577d049cd02bbb (git)
Affected: ba987eaaabf99b462cdfed86274e3455d5126349 , < 2e6fe1bbefd9c059c3787d1c620fe67343a94dff (git)
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Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.112 , ≤ 6.6.* (semver)
Unaffected: 6.12.53 , ≤ 6.12.* (semver)
Unaffected: 6.17.3 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/edac/i10nm_base.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "versionType": "git"
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.3"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "versionType": "semver"
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              "version": "6.18",
              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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          "nodes": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.112",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
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                },
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                },
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              ],
              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/i10nm: Skip DIMM enumeration on a disabled memory controller\n\nWhen loading the i10nm_edac driver on some Intel Granite Rapids servers,\na call trace may appear as follows:\n\n  UBSAN: shift-out-of-bounds in drivers/edac/skx_common.c:453:16\n  shift exponent -66 is negative\n  ...\n  __ubsan_handle_shift_out_of_bounds+0x1e3/0x390\n  skx_get_dimm_info.cold+0x47/0xd40 [skx_edac_common]\n  i10nm_get_dimm_config+0x23e/0x390 [i10nm_edac]\n  skx_register_mci+0x159/0x220 [skx_edac_common]\n  i10nm_init+0xcb0/0x1ff0 [i10nm_edac]\n  ...\n\nThis occurs because some BIOS may disable a memory controller if there\naren\u0027t any memory DIMMs populated on this memory controller. The DIMMMTR\nregister of this disabled memory controller contains the invalid value\n~0, resulting in the call trace above.\n\nFix this call trace by skipping DIMM enumeration on a disabled memory\ncontroller."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:43:50.466Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8100b6c0f9089d5b156642b81270ce27fff17490"
        },
        {
          "url": "https://git.kernel.org/stable/c/1652f14cf3bef5a4baa232de954fc22bdcaa78fe"
        },
        {
          "url": "https://git.kernel.org/stable/c/c20da24272f1ac79e9f9083bba577d049cd02bbb"
        },
        {
          "url": "https://git.kernel.org/stable/c/2e6fe1bbefd9c059c3787d1c620fe67343a94dff"
        }
      ],
      "title": "EDAC/i10nm: Skip DIMM enumeration on a disabled memory controller",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40157",
    "datePublished": "2025-11-12T10:23:29.258Z",
    "dateReserved": "2025-04-16T07:20:57.176Z",
    "dateUpdated": "2026-05-11T21:43:50.466Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-10-21",
      "epss": "0.00246",
      "percentile": "0.14951"
    },
    "nvd": {
      "cve": {
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                "product": "Linux",
                "programFiles": [
                  "drivers/edac/i10nm_base.c"
                ],
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                "versions": [
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                    "versionType": "semver"
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                  },
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/i10nm: Skip DIMM enumeration on a disabled memory controller\n\nWhen loading the i10nm_edac driver on some Intel Granite Rapids servers,\na call trace may appear as follows:\n\n  UBSAN: shift-out-of-bounds in drivers/edac/skx_common.c:453:16\n  shift exponent -66 is negative\n  ...\n  __ubsan_handle_shift_out_of_bounds+0x1e3/0x390\n  skx_get_dimm_info.cold+0x47/0xd40 [skx_edac_common]\n  i10nm_get_dimm_config+0x23e/0x390 [i10nm_edac]\n  skx_register_mci+0x159/0x220 [skx_edac_common]\n  i10nm_init+0xcb0/0x1ff0 [i10nm_edac]\n  ...\n\nThis occurs because some BIOS may disable a memory controller if there\naren\u0027t any memory DIMMs populated on this memory controller. The DIMMMTR\nregister of this disabled memory controller contains the invalid value\n~0, resulting in the call trace above.\n\nFix this call trace by skipping DIMM enumeration on a disabled memory\ncontroller."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nEDAC/i10nm: Omitir la enumeraci\u00f3n de DIMM en un controlador de memoria deshabilitado\n\nAl cargar el controlador i10nm_edac en algunos servidores Intel Granite Rapids, puede aparecer una traza de llamadas de la siguiente manera:\n\n  UBSAN: shift-out-of-bounds en drivers/edac/skx_common.c:453:16\n  shift exponent -66 is negative\n  ...\n  __ubsan_handle_shift_out_of_bounds+0x1e3/0x390\n  skx_get_dimm_info.cold+0x47/0xd40 [skx_edac_common]\n  i10nm_get_dimm_config+0x23e/0x390 [i10nm_edac]\n  skx_register_mci+0x159/0x220 [skx_edac_common]\n  i10nm_init+0xcb0/0x1ff0 [i10nm_edac]\n  ...\n\nEsto ocurre porque algunas BIOS pueden deshabilitar un controlador de memoria si no hay ning\u00fan DIMM de memoria instalado en este controlador de memoria. El registro DIMMMTR de este controlador de memoria deshabilitado contiene el valor inv\u00e1lido ~0, lo que resulta en la traza de llamadas anterior.\n\nSolucione esta traza de llamadas omitiendo la enumeraci\u00f3n de DIMM en un controlador de memoria deshabilitado."
          }
        ],
        "id": "CVE-2025-40157",
        "lastModified": "2026-10-19T21:10:00.160",
        "metrics": {},
        "published": "2025-11-12T11:15:45.763",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/1652f14cf3bef5a4baa232de954fc22bdcaa78fe"
          },
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c20da24272f1ac79e9f9083bba577d049cd02bbb"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:34:23+00:00",
      "cve": "CVE-2025-40157",
      "id": "CVE-2025-40157",
      "initial_release_date": "2025-11-12T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Denial of service in i10nm_edac driver due to disabled memory controller",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40157.json",
      "version": "3"
    }
  }
}



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