CVE-2025-39960

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-39960", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.149Z", "datePublished": "2025-10-09T12:13:21.327Z", "dateUpdated": "2026-08-05T12:06:28.916Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:06:28.916Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: acpi: initialize acpi_gpio_info struct\n\nSince commit 7c010d463372 (\"gpiolib: acpi: Make sure we fill struct\nacpi_gpio_info\"), uninitialized acpi_gpio_info struct are passed to\n__acpi_find_gpio() and later in the call stack info->quirks is used in\nacpi_populate_gpio_lookup. This breaks the i2c_hid_cpi driver:\n\n[ 58.122916] i2c_hid_acpi i2c-UNIW0001:00: HID over i2c has not been provided an Int IRQ\n[ 58.123097] i2c_hid_acpi i2c-UNIW0001:00: probe with driver i2c_hid_acpi failed with error -22\n\nFix this by initializing the acpi_gpio_info pass to __acpi_find_gpio()"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "baseScore": 7.3, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable code is reached only through local device enumeration/driver probe (`gpiod_find_and_request()` \u2192 `acpi_find_gpio()`), triggered at boot, on ACPI hotplug, or via local sysfs driver bind/unbind. There is no network- or peer-supplied data on the path.\nAC:L - On affected ACPI firmware the misbehavior reproduces deterministically every probe (the reporter hit it on every boot), and an attacker able to trigger a re-probe can groom the kernel stack so the desired quirk bits land at the uninitialized `info.quirks` offset. No condition outside attacker influence is required.\nPR:L - Reaching a GPIO probe path requires a local account on the system; unprivileged users cannot obtain the ACPI/GPIO subsystem privileges through user namespaces, but the resulting misconfiguration is already present system-wide from boot and is observable/abusable by any local low-privileged user.\nUI:N - The uninitialized struct is consumed automatically during device probe and ACPI resource enumeration; no victim action such as opening a file or mounting a filesystem is needed.\nS:U - The impact stays within the kernel's own security authority \u2014 misconfigured GPIO descriptors and driver state \u2014 with no crossing of a VM, IOMMU, or sandbox boundary.\nC:L - The uninitialized `quirks` bits are never copied to userspace, but they determine which GPIO line is claimed and with which polarity/active-low flags, state that is observable through gpiochip line info, exposing a small amount of residual kernel stack content indirectly.\nI:H - With `ACPI_GPIO_QUIRK_ABSOLUTE_NUMBER` spuriously set, `gpio_to_desc()` hands the driver a descriptor for an arbitrary global GPIO line on an unrelated controller, which the driver then configures and drives; combined with `NO_IO_RESTRICTION` discarding the firmware's declared direction, the kernel modifies hardware state (resets, power enables, relay/motor outputs on embedded, industrial, and automotive platforms) that it was never authorized to touch.\nA:H - The confirmed effect is device probe failure making hardware unusable (i2c_hid_acpi input device dead with -EINVAL), and driving an arbitrary unrelated GPIO \u2014 such as a reset or power-enable line \u2014 can reset or hang the platform outright."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpio/gpiolib-acpi-core.c"], "versions": [{"version": "7c010d463372140006bf96985a306d6cbfc6e118", "lessThan": "27d94a2a52cbb54927c0140bd5b978c56e9a283a", "status": "affected", "versionType": "git"}, {"version": "7c010d463372140006bf96985a306d6cbfc6e118", "lessThan": "19c839a98c731169f06d32e7c9e00c78a0086ebe", "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/gpio/gpiolib-acpi-core.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.9", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17", "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": "6.16", "versionEndExcluding": "6.16.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/27d94a2a52cbb54927c0140bd5b978c56e9a283a"}, {"url": "https://git.kernel.org/stable/c/19c839a98c731169f06d32e7c9e00c78a0086ebe"}], "title": "gpiolib: acpi: initialize acpi_gpio_info struct", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpio/gpiolib-acpi-core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "27d94a2a52cbb54927c0140bd5b978c56e9a283a", "status": "affected", "version": "7c010d463372140006bf96985a306d6cbfc6e118", "versionType": "git"}, {"lessThan": "19c839a98c731169f06d32e7c9e00c78a0086ebe", "status": "affected", "version": "7c010d463372140006bf96985a306d6cbfc6e118", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpio/gpiolib-acpi-core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"lessThan": "6.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.16.*", "status": "unaffected", "version": "6.16.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A29694A5-4AF1-4C6F-8828-187FA35BAC01", "versionEndExcluding": "6.16.9", "versionStartIncluding": "6.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*", "matchCriteriaId": "327D22EF-390B-454C-BD31-2ED23C998A1C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*", "matchCriteriaId": "C730CD9A-D969-4A8E-9522-162AAF7C0EE9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*", "matchCriteriaId": "39982C4B-716E-4B2F-8196-FA301F47807D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*", "matchCriteriaId": "340BEEA9-D70D-4290-B502-FBB1032353B1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:*", "matchCriteriaId": "47E4C5C0-079F-4838-971B-8C503D48FCC2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.17:rc6:*:*:*:*:*:*", "matchCriteriaId": "5A4516A6-C12E-42A4-8C0E-68AEF3264504", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: acpi: initialize acpi_gpio_info struct\n\nSince commit 7c010d463372 (\"gpiolib: acpi: Make sure we fill struct\nacpi_gpio_info\"), uninitialized acpi_gpio_info struct are passed to\n__acpi_find_gpio() and later in the call stack info->quirks is used in\nacpi_populate_gpio_lookup. This breaks the i2c_hid_cpi driver:\n\n[ 58.122916] i2c_hid_acpi i2c-UNIW0001:00: HID over i2c has not been provided an Int IRQ\n[ 58.123097] i2c_hid_acpi i2c-UNIW0001:00: probe with driver i2c_hid_acpi failed with error -22\n\nFix this by initializing the acpi_gpio_info pass to __acpi_find_gpio()"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ngpiolib: acpi: inicializar la estructura acpi_gpio_info\n\nDesde el commit 7c010d463372 ('gpiolib: acpi: Asegurarse de que rellenamos la estructura acpi_gpio_info'), se pasan estructuras acpi_gpio_info no inicializadas a __acpi_find_gpio() y m\u00e1s tarde en la pila de llamadas info->quirks se utiliza en acpi_populate_gpio_lookup. Esto rompe el controlador i2c_hid_cpi:\n\n[ 58.122916] i2c_hid_acpi i2c-UNIW0001:00: No se ha proporcionado una IRQ Int a HID sobre i2c\n[ 58.123097] i2c_hid_acpi i2c-UNIW0001:00: la sonda con el controlador i2c_hid_acpi fall\u00f3 con el error -22\n\nSolucione esto inicializando la acpi_gpio_info pasada a __acpi_find_gpio()"}], "id": "CVE-2025-39960", "lastModified": "2026-10-19T21:10:00.160", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.5, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-10-09T13:15:32.130", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/19c839a98c731169f06d32e7c9e00c78a0086ebe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/27d94a2a52cbb54927c0140bd5b978c56e9a283a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: gpiolib: acpi: initialize acpi_gpio_info struct", "id": "2402722", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2402722"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-39960", "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": "2025-10-09T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-39960\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39960\nhttps://lore.kernel.org/linux-cve-announce/2025100914-CVE-2025-39960-f3f6@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-10T11:18:26.343185+00:00", "updated": "2025-10-10T11:18:26.343232+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}