CVE-2026-90112 (GCVE-0-2026-90112)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:06 – Updated: 2026-10-30 12:34
VLAI
Title
net: qlcnic: validate unified ROM sections before loading
Summary
In the Linux kernel, the following vulnerability has been resolved: net: qlcnic: validate unified ROM sections before loading The unified ROM parser reads directory, product, and data-descriptor fields from the firmware file. Existing validation forms table and data ends with unchecked additions and multiplications. Malformed values can wrap before they are compared with the firmware size. The parser also dereferences typed pointers at firmware-controlled offsets. Valid descriptor extents alone are insufficient for the consumers. The loader reads a fixed-size bootloader regardless of its declared size, the version parser assumes a 17-byte tail, and a partial final firmware word is read as a full u64. A truncated image can therefore make the driver read beyond the firmware allocation during validation or loading. Replace the pointer-returning parser with bounded range helpers. Validate table entry sizes, descriptor indices, section ranges, the fixed bootloader load length, and the version tail before exposing any section. Read all file fields with unaligned little-endian accessors and assemble a partial final word from only the bytes that remain. Apply the same range checks to the legacy image before reading its fixed fields.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6639 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: af19b49152bdb68fda894183e88096d6d1aa5c3d , < ad6cceee7aca7762f90f155480c2cd8d11ec6914 (git)
Affected: af19b49152bdb68fda894183e88096d6d1aa5c3d , < 43451ec94fb67ae1715faf29e9e6ab20ecbd42f4 (git)
Affected: af19b49152bdb68fda894183e88096d6d1aa5c3d , < b9efc177703a03312cc2f6e6a4bbd4595e8158a1 (git)
Affected: af19b49152bdb68fda894183e88096d6d1aa5c3d , < 4be733a450c86938c91f9c70a56802ef5069764c (git)
Affected: af19b49152bdb68fda894183e88096d6d1aa5c3d , < 684773c4d26f7f2211beb31fb90629216f8a61f5 (git)
Affected: af19b49152bdb68fda894183e88096d6d1aa5c3d , < 5e8076e4e4124dae75a3e080ddc20404700d7585 (git)
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Linux Linux Affected: 2.6.34
Unaffected: 0 , < 2.6.34 (semver)
Unaffected: 6.1.191 , ≤ 6.1.* (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qlcnic: validate unified ROM sections before loading\n\nThe unified ROM parser reads directory, product, and data-descriptor fields\nfrom the firmware file.  Existing validation forms table and data ends with\nunchecked additions and multiplications.  Malformed values can wrap before\nthey are compared with the firmware size.  The parser also dereferences\ntyped pointers at firmware-controlled offsets.\n\nValid descriptor extents alone are insufficient for the consumers.  The\nloader reads a fixed-size bootloader regardless of its declared size, the\nversion parser assumes a 17-byte tail, and a partial final firmware word is\nread as a full u64.  A truncated image can therefore make the driver read\nbeyond the firmware allocation during validation or loading.\n\nReplace the pointer-returning parser with bounded range helpers.  Validate\ntable entry sizes, descriptor indices, section ranges, the fixed\nbootloader load length, and the version tail before exposing any section.\nRead all file fields with unaligned little-endian accessors and assemble a\npartial final word from only the bytes that remain.  Apply the same range\nchecks to the legacy image before reading its fixed fields."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:34:14.158Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "net: qlcnic: validate unified ROM sections before loading",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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    "datePublished": "2026-09-17T16:06:19.419Z",
    "dateReserved": "2026-09-11T19:38:34.787Z",
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    "state": "PUBLISHED"
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qlcnic: validate unified ROM sections before loading\n\nThe unified ROM parser reads directory, product, and data-descriptor fields\nfrom the firmware file.  Existing validation forms table and data ends with\nunchecked additions and multiplications.  Malformed values can wrap before\nthey are compared with the firmware size.  The parser also dereferences\ntyped pointers at firmware-controlled offsets.\n\nValid descriptor extents alone are insufficient for the consumers.  The\nloader reads a fixed-size bootloader regardless of its declared size, the\nversion parser assumes a 17-byte tail, and a partial final firmware word is\nread as a full u64.  A truncated image can therefore make the driver read\nbeyond the firmware allocation during validation or loading.\n\nReplace the pointer-returning parser with bounded range helpers.  Validate\ntable entry sizes, descriptor indices, section ranges, the fixed\nbootloader load length, and the version tail before exposing any section.\nRead all file fields with unaligned little-endian accessors and assemble a\npartial final word from only the bytes that remain.  Apply the same range\nchecks to the legacy image before reading its fixed fields."
          }
        ],
        "id": "CVE-2026-90112",
        "lastModified": "2026-10-30T13:20:42.243",
        "metrics": {},
        "published": "2026-09-17T17:17:03.243",
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-11-06T01:30:20+00:00",
      "cve": "CVE-2026-90112",
      "id": "CVE-2026-90112",
      "initial_release_date": "2026-09-17T00:00:00+00:00",
      "product_status:known_affected": "28",
      "product_status:known_not_affected": "175",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: qlcnic: validate unified ROM sections before loading",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90112.json",
      "version": "3"
    }
  }
}



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