CVE-2026-23062 (GCVE-0-2026-23062)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:07 – Updated: 2026-02-09 08:38
VLAI?
Title
platform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro
Summary
In the Linux kernel, the following vulnerability has been resolved: platform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro The GET_INSTANCE_ID macro that caused a kernel panic when accessing sysfs attributes: 1. Off-by-one error: The loop condition used '<=' instead of '<', causing access beyond array bounds. Since array indices are 0-based and go from 0 to instances_count-1, the loop should use '<'. 2. Missing NULL check: The code dereferenced attr_name_kobj->name without checking if attr_name_kobj was NULL, causing a null pointer dereference in min_length_show() and other attribute show functions. The panic occurred when fwupd tried to read BIOS configuration attributes: Oops: general protection fault [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:min_length_show+0xcf/0x1d0 [hp_bioscfg] Add a NULL check for attr_name_kobj before dereferencing and corrects the loop boundary to match the pattern used elsewhere in the driver.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5f94f181ca25d8c5b77beb2da0cb466ddb6ece29 , < eb5ff1025c92117d5d1cc728bcfa294abe484da1 (git)
Affected: 5f94f181ca25d8c5b77beb2da0cb466ddb6ece29 , < eba49c1dee9c5e514ca18e52c545bba524e8a045 (git)
Affected: 5f94f181ca25d8c5b77beb2da0cb466ddb6ece29 , < 193922a23d7294085a47d7719fdb7d66ad0a236f (git)
Affected: 5f94f181ca25d8c5b77beb2da0cb466ddb6ece29 , < 25150715e0b049b99df664daf05dab12f41c3e13 (git)
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    Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.68 , ≤ 6.12.* (semver)
Unaffected: 6.18.8 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/hp/hp-bioscfg/bioscfg.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
            {
              "lessThan": "eba49c1dee9c5e514ca18e52c545bba524e8a045",
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            },
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/platform/x86/hp/hp-bioscfg/bioscfg.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.122",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.68",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.122",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.68",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.8",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro\n\nThe GET_INSTANCE_ID macro that caused a kernel panic when accessing sysfs\nattributes:\n\n1. Off-by-one error: The loop condition used \u0027\u003c=\u0027 instead of \u0027\u003c\u0027,\n   causing access beyond array bounds. Since array indices are 0-based\n   and go from 0 to instances_count-1, the loop should use \u0027\u003c\u0027.\n\n2. Missing NULL check: The code dereferenced attr_name_kobj-\u003ename\n   without checking if attr_name_kobj was NULL, causing a null pointer\n   dereference in min_length_show() and other attribute show functions.\n\nThe panic occurred when fwupd tried to read BIOS configuration attributes:\n\n  Oops: general protection fault [#1] SMP KASAN NOPTI\n  KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n  RIP: 0010:min_length_show+0xcf/0x1d0 [hp_bioscfg]\n\nAdd a NULL check for attr_name_kobj before dereferencing and corrects\nthe loop boundary to match the pattern used elsewhere in the driver."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-09T08:38:01.015Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/eb5ff1025c92117d5d1cc728bcfa294abe484da1"
        },
        {
          "url": "https://git.kernel.org/stable/c/eba49c1dee9c5e514ca18e52c545bba524e8a045"
        },
        {
          "url": "https://git.kernel.org/stable/c/193922a23d7294085a47d7719fdb7d66ad0a236f"
        },
        {
          "url": "https://git.kernel.org/stable/c/25150715e0b049b99df664daf05dab12f41c3e13"
        }
      ],
      "title": "platform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23062",
    "datePublished": "2026-02-04T16:07:44.420Z",
    "dateReserved": "2026-01-13T15:37:45.953Z",
    "dateUpdated": "2026-02-09T08:38:01.015Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23062\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-04T17:16:16.883\",\"lastModified\":\"2026-02-05T14:57:20.563\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nplatform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro\\n\\nThe GET_INSTANCE_ID macro that caused a kernel panic when accessing sysfs\\nattributes:\\n\\n1. Off-by-one error: The loop condition used \u0027\u003c=\u0027 instead of \u0027\u003c\u0027,\\n   causing access beyond array bounds. Since array indices are 0-based\\n   and go from 0 to instances_count-1, the loop should use \u0027\u003c\u0027.\\n\\n2. Missing NULL check: The code dereferenced attr_name_kobj-\u003ename\\n   without checking if attr_name_kobj was NULL, causing a null pointer\\n   dereference in min_length_show() and other attribute show functions.\\n\\nThe panic occurred when fwupd tried to read BIOS configuration attributes:\\n\\n  Oops: general protection fault [#1] SMP KASAN NOPTI\\n  KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\\n  RIP: 0010:min_length_show+0xcf/0x1d0 [hp_bioscfg]\\n\\nAdd a NULL check for attr_name_kobj before dereferencing and corrects\\nthe loop boundary to match the pattern used elsewhere in the driver.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/193922a23d7294085a47d7719fdb7d66ad0a236f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/25150715e0b049b99df664daf05dab12f41c3e13\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eb5ff1025c92117d5d1cc728bcfa294abe484da1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eba49c1dee9c5e514ca18e52c545bba524e8a045\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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