CVE-2026-23062 (GCVE-0-2026-23062)
Vulnerability from cvelistv5 – Published: 2026-02-04 16:07 – Updated: 2026-05-11 21:59
VLAI
EPSS
VEX
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
5.5 (Medium)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
5f94f181ca25d8c5b77beb2da0cb466ddb6ece29 , < eb5ff1025c92117d5d1cc728bcfa294abe484da1
(git)
Affected: 5f94f181ca25d8c5b77beb2da0cb466ddb6ece29 , < eba49c1dee9c5e514ca18e52c545bba524e8a045 (git) Affected: 5f94f181ca25d8c5b77beb2da0cb466ddb6ece29 , < 193922a23d7294085a47d7719fdb7d66ad0a236f (git) Affected: 5f94f181ca25d8c5b77beb2da0cb466ddb6ece29 , < 25150715e0b049b99df664daf05dab12f41c3e13 (git) |
guessed | |
| 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) |
guessed |
{
"containers": {
"cna": {
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{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/platform/x86/hp/hp-bioscfg/bioscfg.h"
],
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"vendor": "Linux",
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{
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},
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]
},
{
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"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:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.6",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.8",
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.6",
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}
],
"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": "2026-05-11T21:59:15.864Z",
"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": "2026-05-11T21:59:15.864Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-23062",
"date": "2026-09-17",
"epss": "0.00127",
"percentile": "0.0269"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-23062\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-04T17:16:16.883\",\"lastModified\":\"2026-06-17T10:20:47.693\",\"vulnStatus\":\"Analyzed\",\"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.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\\n\\nplatform/x86: hp-bioscfg: Correcci\u00f3n de p\u00e1nico del kernel en la macro GET_INSTANCE_ID\\n\\nLa macro GET_INSTANCE_ID que caus\u00f3 un p\u00e1nico del kernel al acceder a los atributos de sysfs:\\n\\n1. Error de uno: La condici\u00f3n del bucle usaba \u0027\u0026lt;=\u0027 en lugar de \u0027\u0026lt;\u0027, causando acceso m\u00e1s all\u00e1 de los l\u00edmites del array. Dado que los \u00edndices del array est\u00e1n basados en 0 y van de 0 a instances_count-1, el bucle deber\u00eda usar \u0027\u0026lt;\u0027.\\n\\n2. Falta de comprobaci\u00f3n de NULL: El c\u00f3digo desreferenci\u00f3 attr_name_kobj-\u0026gt;name sin comprobar si attr_name_kobj era NULL, causando una desreferencia de puntero nulo en min_length_show() y otras funciones de visualizaci\u00f3n de atributos.\\n\\nEl p\u00e1nico ocurri\u00f3 cuando fwupd intent\u00f3 leer atributos de configuraci\u00f3n del BIOS:\\n\\n Oops: general protection fault [#1] SMP KASAN NOPTI\\n KASAN: null-ptr-deref en el rango [0x0000000000000000-0x0000000000000007]\\n RIP: 0010:min_length_show+0xcf/0x1d0 [hp_bioscfg]\\n\\nA\u00f1ade una comprobaci\u00f3n de NULL para attr_name_kobj antes de desreferenciar y corrige el l\u00edmite del bucle para que coincida con el patr\u00f3n usado en otras partes del controlador.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/platform/x86/hp/hp-bioscfg/bioscfg.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5f94f181ca25d8c5b77beb2da0cb466ddb6ece29\",\"lessThan\":\"eb5ff1025c92117d5d1cc728bcfa294abe484da1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5f94f181ca25d8c5b77beb2da0cb466ddb6ece29\",\"lessThan\":\"eba49c1dee9c5e514ca18e52c545bba524e8a045\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5f94f181ca25d8c5b77beb2da0cb466ddb6ece29\",\"lessThan\":\"193922a23d7294085a47d7719fdb7d66ad0a236f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5f94f181ca25d8c5b77beb2da0cb466ddb6ece29\",\"lessThan\":\"25150715e0b049b99df664daf05dab12f41c3e13\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/platform/x86/hp/hp-bioscfg/bioscfg.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.6\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.6\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.122\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.68\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.8\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6\",\"versionEndExcluding\":\"6.6.122\",\"matchCriteriaId\":\"5BC7DC6F-F752-49B5-82B2-A8F4BF9C3EAC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.68\",\"matchCriteriaId\":\"52F38E19-0FDD-4992-9D6D-D4169D689598\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.8\",\"matchCriteriaId\":\"E65C6E79-7EBE-4C77-93F0-818CF5B38F4E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"17B67AA7-40D6-4AFA-8459-F200F3D7CFD1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"C47E4CC9-C826-4FA9-B014-7FE3D9B318B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F71D92C0-C023-48BD-B3B6-70B638EEE298\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"13580667-0A98-40CC-B29F-D12790B91BDB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"3EF854A1-ABB1-4E93-BE9A-44569EC76C0D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/193922a23d7294085a47d7719fdb7d66ad0a236f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/25150715e0b049b99df664daf05dab12f41c3e13\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/eb5ff1025c92117d5d1cc728bcfa294abe484da1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/eba49c1dee9c5e514ca18e52c545bba524e8a045\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "None",
"current_release_date": "2026-06-28T07:18:30+00:00",
"cve": "CVE-2026-23062",
"id": "CVE-2026-23062",
"initial_release_date": "2026-02-04T00:00:00+00:00",
"product_status:known_not_affected": "274",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: platform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23062.json",
"version": "3"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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