CVE-2026-23062

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23062", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.953Z", "datePublished": "2026-02-04T16:07:44.420Z", "dateUpdated": "2026-05-11T21:59:15.864Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:59:15.864Z"}, "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 '<=' instead of '<',\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 '<'.\n\n2. Missing NULL check: The code dereferenced attr_name_kobj->name\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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/platform/x86/hp/hp-bioscfg/bioscfg.h"], "versions": [{"version": "5f94f181ca25d8c5b77beb2da0cb466ddb6ece29", "lessThan": "eb5ff1025c92117d5d1cc728bcfa294abe484da1", "status": "affected", "versionType": "git"}, {"version": "5f94f181ca25d8c5b77beb2da0cb466ddb6ece29", "lessThan": "eba49c1dee9c5e514ca18e52c545bba524e8a045", "status": "affected", "versionType": "git"}, {"version": "5f94f181ca25d8c5b77beb2da0cb466ddb6ece29", "lessThan": "193922a23d7294085a47d7719fdb7d66ad0a236f", "status": "affected", "versionType": "git"}, {"version": "5f94f181ca25d8c5b77beb2da0cb466ddb6ece29", "lessThan": "25150715e0b049b99df664daf05dab12f41c3e13", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/platform/x86/hp/hp-bioscfg/bioscfg.h"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.122", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.68", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.8", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.6.122"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.68"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.18.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.19"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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": [{"lessThan": "eb5ff1025c92117d5d1cc728bcfa294abe484da1", "status": "affected", "version": "5f94f181ca25d8c5b77beb2da0cb466ddb6ece29", "versionType": "git"}, {"lessThan": "eba49c1dee9c5e514ca18e52c545bba524e8a045", "status": "affected", "version": "5f94f181ca25d8c5b77beb2da0cb466ddb6ece29", "versionType": "git"}, {"lessThan": "193922a23d7294085a47d7719fdb7d66ad0a236f", "status": "affected", "version": "5f94f181ca25d8c5b77beb2da0cb466ddb6ece29", "versionType": "git"}, {"lessThan": "25150715e0b049b99df664daf05dab12f41c3e13", "status": "affected", "version": "5f94f181ca25d8c5b77beb2da0cb466ddb6ece29", "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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5BC7DC6F-F752-49B5-82B2-A8F4BF9C3EAC", "versionEndExcluding": "6.6.122", "versionStartIncluding": "6.6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "52F38E19-0FDD-4992-9D6D-D4169D689598", "versionEndExcluding": "6.12.68", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E65C6E79-7EBE-4C77-93F0-818CF5B38F4E", "versionEndExcluding": "6.18.8", "versionStartIncluding": "6.13", "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", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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 '<=' instead of '<',\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 '<'.\n\n2. Missing NULL check: The code dereferenced attr_name_kobj->name\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 '&lt;=' en lugar de '&lt;', 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 '&lt;'.\n\n2. Falta de comprobaci\u00f3n de NULL: El c\u00f3digo desreferenci\u00f3 attr_name_kobj-&gt;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."}], "id": "CVE-2026-23062", "lastModified": "2026-06-17T10:20:47.693", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-02-04T17:16:16.883", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "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"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: platform/x86: hp-bioscfg: Fix kernel panic in GET_INSTANCE_ID macro", "id": "2436829", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2436829"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2026-23062", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-02-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23062\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23062\nhttps://lore.kernel.org/linux-cve-announce/2026020415-CVE-2026-23062-991d@gregkh/T"]}

{"analysis": {"en": {"generated_at": "2026-04-17T23:42:16.187070+00:00", "value": {"mitigation_remediation": ["Apply the vendor\u2011supplied kernel patch that fixes the null\u2011pointer dereference and off\u2011by\u2011one error in the hp_bioscfg driver.", "Upgrade to a Linux kernel version that contains the CVE fix, such as 6.19.1 or a later stable release.", "If an immediate kernel upgrade is not possible, disable access to the hp_bioscfg sysfs attributes or block fwupd from reading BIOS configuration attributes until the patch is applied."], "summary": {"action": "Apply Patch", "impact": "Denial of Service (Kernel Panic)"}, "threat_synthesis": {"affected_systems": "Affected systems include the Linux kernel, specifically release candidates 6.19 rc1 through rc6 as identified by the corresponding CPE strings; no other kernel versions are listed as impacted in the advisory.", "description_and_impact": "The vulnerability arises from an off\u2011by\u2011one loop error and a missing null check in the hp_bioscfg driver\u2019s GET_INSTANCE_ID macro, causing a null\u2011pointer dereference when sysfs attributes are accessed; this triggers a kernel panic that can force the system to reboot, resulting in a denial of service.", "risk_and_exploitability": "The CVSS score is 5.5, placing the issue in the moderate range, while the EPSS score is reported as <1% indicating a very low likelihood of exploitation in the wild. The vulnerability is not included in CISA\u2019s KEV catalog. Exploitation would require local access to trigger a sysfs read via fwupd, suggesting the attack vector is likely local; therefore, the immediate threat level is moderate but the impact of a system crash can be significant for uptime."}}}}, "created": "2026-04-17T23:45:25.813253+00:00", "updated": "2026-04-17T23:45:25.813263+00:00", "vendors": []}