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GHSA-W9PR-65J7-4RG9

Vulnerability from github – Published: 2026-09-24 18:31 – Updated: 2026-09-25 06:30

Details

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

drm/amdgpu: harden FRU PIA parsing with bounded helpers

Replace the open-coded TLV walk with fru_pia_advance() and fru_pia_copy_field() helpers that bound every read by the actual EEPROM data length, preventing out-of-bounds reads on truncated or malformed FRU data.

Severity

7.7 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-97428"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-24T17:17:20Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: harden FRU PIA parsing with bounded helpers\n\nReplace the open-coded TLV walk with fru_pia_advance()\nand fru_pia_copy_field() helpers that bound every read\nby the actual EEPROM data length, preventing out-of-bounds\nreads on truncated or malformed FRU data.",
  "id": "GHSA-w9pr-65j7-4rg9",
  "modified": "2026-09-25T06:30:31Z",
  "published": "2026-09-24T18:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97428"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4396d74b0c7304946ee343a6611ac6dbc0bfbf78"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/813311512505e95e4e3c898ff94b11886a15e494"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c990c05eb6c74c98d1ff3acf67a19015312820b7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-97428 (GCVE-0-2026-97428)

Vulnerability from cvelistv5 – Published: 2026-09-24 16:03 – Updated: 2026-09-25 12:44

Title

drm/amdgpu: harden FRU PIA parsing with bounded helpers

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: harden FRU PIA parsing with bounded helpers Replace the open-coded TLV walk with fru_pia_advance() and fru_pia_copy_field() helpers that bound every read by the actual EEPROM data length, preventing out-of-bounds reads on truncated or malformed FRU data.

Severity

7.7 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/813311512505e95e4…
https://git.kernel.org/stable/c/4396d74b0c7304946…
https://git.kernel.org/stable/c/c990c05eb6c74c98d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0dbf2c56262532fbd498f590c91c4085413b8829 , < 813311512505e95e4e3c898ff94b11886a15e494 (git) Affected: 0dbf2c56262532fbd498f590c91c4085413b8829 , < 4396d74b0c7304946ee343a6611ac6dbc0bfbf78 (git) Affected: 0dbf2c56262532fbd498f590c91c4085413b8829 , < c990c05eb6c74c98d1ff3acf67a19015312820b7 (git)
Linux	Linux	Affected: 6.2 Unaffected: 0 , < 6.2 (semver) Unaffected: 6.12.111 , ≤ 6.12.* (semver) Unaffected: 6.18.53 , ≤ 6.18.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "813311512505e95e4e3c898ff94b11886a15e494",
              "status": "affected",
              "version": "0dbf2c56262532fbd498f590c91c4085413b8829",
              "versionType": "git"
            },
            {
              "lessThan": "4396d74b0c7304946ee343a6611ac6dbc0bfbf78",
              "status": "affected",
              "version": "0dbf2c56262532fbd498f590c91c4085413b8829",
              "versionType": "git"
            },
            {
              "lessThan": "c990c05eb6c74c98d1ff3acf67a19015312820b7",
              "status": "affected",
              "version": "0dbf2c56262532fbd498f590c91c4085413b8829",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.111",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.53",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: harden FRU PIA parsing with bounded helpers\n\nReplace the open-coded TLV walk with fru_pia_advance()\nand fru_pia_copy_field() helpers that bound every read\nby the actual EEPROM data length, preventing out-of-bounds\nreads on truncated or malformed FRU data."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The malformed IPMI FRU Product Info Area TLV lengths (pia[addr] \u0026 0x3F) are consumed by amdgpu_fru_get_product_info() after amdgpu_eeprom_read() on adev-\u003epm.fru_eeprom_i2c_bus, reached from amdgpu_pci_probe() \u2192 amdgpu_driver_load_kms() \u2192 amdgpu_device_init() \u2192 amdgpu_device_ip_init(). Those bytes come from the GPU I2C FRU EEPROM, not a network protocol or USB descriptor.\nAC:L - A FRU image with valid Common Header and PIA checksums but TLV lengths that extend past the kmalloc\u0027d pia buffer makes the pre-fix memcpy of manufacturer_name, product_name, product_number, serial, and fru_id overread on every probe. The attacker programs those EEPROM bytes; skipped Product Version/Asset Tag advances also lack a bounds check. No race.\nPR:N - amdgpu_fru_get_product_info() runs from amdgpu_device_ip_init() during amdgpu_pci_probe() with no capable() or credential check. is_fru_eeprom_supported() only matches server SKUs (Vega20 D161/D163, Aldebaran, SMU 13.0.6/13.0.14) and skips SR-IOV VFs and APUs; a crafted FRU on a supported GPU is parsed without a host account.\nUI:N - amdgpu_pci_probe() calls amdgpu_fru_get_product_info() automatically while binding a supported AMD server GPU; no victim must open a DRM node, mount media, or write sysfs.\nS:U - The memcpy overread of the kzalloc\u0027d pia buffer and the later 0444 sysfs emit stay in this host kernel\u0027s amdgpu driver. is_fru_eeprom_supported() returns false for amdgpu_sriov_vf(), so this is not a guest-to-host or IOMMU boundary crossing.\nC:H - Pre-fix memcpy(fru_info-\u003eproduct_name, pia+addr+1, min(64, pia[addr]\u00260x3F)) and the manufacturer_name/product_number/serial/fru_id copies do not cap the length to remaining PIA bytes, so a 6-bit length near the end of pia reads up to 63 bytes of adjacent kernel heap. amdgpu_fru_product_name_show and sibling 0444 attributes then emit those fields; that is not a few-byte leak.\nI:N - Each memcpy destination is min\u0027d against sizeof(fru_info-\u003emanufacturer_name/product_name/product_number/serial/fru_id), so the TLV walk does not write past those arrays or other kernel objects. This path has no out-of-bounds write or control-flow hijack primitive.\nA:H - A short PIA (size = buf[1]*8, e.g. 8 bytes) plus a product_name field length of 63 makes memcpy() walk tens of bytes past the kzalloc\u0027d pia object into unmapped or poisoned slab and oops inside amdgpu_fru_get_product_info() during probe."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T12:44:04.418Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/813311512505e95e4e3c898ff94b11886a15e494"
        },
        {
          "url": "https://git.kernel.org/stable/c/4396d74b0c7304946ee343a6611ac6dbc0bfbf78"
        },
        {
          "url": "https://git.kernel.org/stable/c/c990c05eb6c74c98d1ff3acf67a19015312820b7"
        }
      ],
      "title": "drm/amdgpu: harden FRU PIA parsing with bounded helpers",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97428",
    "datePublished": "2026-09-24T16:03:41.103Z",
    "dateReserved": "2026-09-24T14:53:16.868Z",
    "dateUpdated": "2026-09-25T12:44:04.418Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-W9PR-65J7-4RG9

CVE-2026-97428 (GCVE-0-2026-97428)

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