CVE-2026-64277

{"id": "CVE-2026-64277", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-64277", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:38:13.158819Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "9e4c596bfd004f447a652205163234dfd4aafa69", "lessThan": "502ad7caaa1a445b734c827fa256e5311df67e3d", "versionType": "git"}, {"status": "affected", "version": "9e4c596bfd004f447a652205163234dfd4aafa69", "lessThan": "3480e24bc4e178aaa009edb25b6ee12df199e210", "versionType": "git"}, {"status": "affected", "version": "9e4c596bfd004f447a652205163234dfd4aafa69", "lessThan": "35ed74d32d8260bdfb14a94caf402bf0866bdeec", "versionType": "git"}, {"status": "affected", "version": "9e4c596bfd004f447a652205163234dfd4aafa69", "lessThan": "ba57f430328534501962d60d651e385ffd7af9ca", "versionType": "git"}, {"status": "affected", "version": "9e4c596bfd004f447a652205163234dfd4aafa69", "lessThan": "850117b637bcb1dcc14be0cf09ac819a8707b42c", "versionType": "git"}, {"status": "affected", "version": "9e4c596bfd004f447a652205163234dfd4aafa69", "lessThan": "8db211aed83733073b0814adaeeab61d4521474e", "versionType": "git"}, {"status": "affected", "version": "9e4c596bfd004f447a652205163234dfd4aafa69", "lessThan": "64fb0e1161ccc6b9e48b8df61f07d3c34c01ec42", "versionType": "git"}, {"status": "affected", "version": "9e4c596bfd004f447a652205163234dfd4aafa69", "lessThan": "57c10915f2c16c90e0d46ad00876bf39ece40fc2", "versionType": "git"}], "programFiles": ["drivers/input/rmi4/rmi_f3a.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"status": "unaffected", "version": "0", "lessThan": "5.10", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.261", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.212", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.178", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.145", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.96", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.39", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.4", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/input/rmi4/rmi_f3a.c"], "defaultStatus": "affected"}]}], "published": "2026-07-25T10:17:08.197", "references": [{"url": "https://git.kernel.org/stable/c/3480e24bc4e178aaa009edb25b6ee12df199e210", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/35ed74d32d8260bdfb14a94caf402bf0866bdeec", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/502ad7caaa1a445b734c827fa256e5311df67e3d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/57c10915f2c16c90e0d46ad00876bf39ece40fc2", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/64fb0e1161ccc6b9e48b8df61f07d3c34c01ec42", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/850117b637bcb1dcc14be0cf09ac819a8707b42c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8db211aed83733073b0814adaeeab61d4521474e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ba57f430328534501962d60d651e385ffd7af9ca", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: synaptics-rmi4 - bound the F3A keymap to the GPIO count\n\nrmi_f3a_initialize() takes the GPIO count from the device query register\n(f3a->gpio_count = buf & RMI_F3A_GPIO_COUNT, range 0..127).\nrmi_f3a_map_gpios() then allocates gpio_key_map with\nmin(gpio_count, TRACKSTICK_RANGE_END) == at most 6 entries, but\nrmi_f3a_attention() iterates the full gpio_count and dereferences\ngpio_key_map[i], and input->keycodemax is set to the full gpio_count\nwhile input->keycode points at the 6-entry allocation.\n\nA device that reports gpio_count > 6 therefore causes an out-of-bounds\nread of gpio_key_map[] on every attention interrupt, and out-of-bounds\naccesses through the input core's default keymap ioctls: EVIOCGKEYCODE\nreads past the buffer (leaking adjacent slab memory to user space) and\nEVIOCSKEYCODE writes a caller-controlled value past it, for any process\nable to open the evdev node, since input_default_getkeycode() and\ninput_default_setkeycode() only bound the index against keycodemax.\n\nSize the keymap for the full gpio_count. The mapping loop is unchanged:\nit still assigns only the first min(gpio_count, TRACKSTICK_RANGE_END)\nentries; the remaining slots stay KEY_RESERVED (devm_kcalloc zero-fills)\nand are skipped when reporting."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nInput: synaptics-rmi4 - vincul\u00f3 el mapa de teclas F3A al recuento de GPIO\n\nrmi_f3a_initialize() toma el recuento de GPIO del registro de consulta del dispositivo (f3a -> gpio_count = buf & RMI_F3A_GPIO_COUNT, rango 0..127).\nrmi_f3a_map_gpios() luego asigna gpio_key_map con min(gpio_count, TRACKSTICK_RANGE_END) == como m\u00e1ximo 6 entradas, pero rmi_f3a_attention() itera el gpio_count completo y desreferencia gpio_key_map[i], y input -> keycodemax se establece en el gpio_count completo mientras que input -> keycode apunta a la asignaci\u00f3n de 6 entradas.\n\nUn dispositivo que reporta gpio_count > 6, por lo tanto, causa una lectura fuera de l\u00edmites de gpio_key_map[] en cada interrupci\u00f3n de atenci\u00f3n, y accesos fuera de l\u00edmites a trav\u00e9s de los ioctls del mapa de teclas predeterminado del n\u00facleo de entrada: EVIOCGKEYCODE lee m\u00e1s all\u00e1 del b\u00fafer (filtrando memoria slab adyacente al espacio de usuario) y EVIOCSKEYCODE escribe un valor controlado por el llamador m\u00e1s all\u00e1 de \u00e9l, para cualquier proceso capaz de abrir el nodo evdev, ya que input_default_getkeycode() y input_default_setkeycode() solo vincularon el \u00edndice contra keycodemax.\n\nDimensionar el mapa de teclas para el gpio_count completo. El bucle de mapeo no ha cambiado: todav\u00eda asigna solo las primeras min(gpio_count, TRACKSTICK_RANGE_END) entradas; las ranuras restantes permanecen KEY_RESERVED (devm_kcalloc rellena con ceros) y se omiten al informar."}], "lastModified": "2026-10-24T13:10:00.147", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "696CCB54-4E61-4603-AE9B-F4A19836CA65", "versionEndExcluding": "5.10.261", "versionStartIncluding": "5.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8E99FB01-CD93-41AF-A653-3F450652B9A6", "versionEndExcluding": "5.15.212", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "092233C7-F4E0-40C8-BD4D-A28FE50DFE20", "versionEndExcluding": "6.1.178", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7046B092-F810-4440-ACE6-60218518EECE", "versionEndExcluding": "6.6.145", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "38A8100E-2B1A-462F-AEE9-8901B870FEF2", "versionEndExcluding": "6.12.96", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "914AE4BC-3D59-4C5A-9DB5-9CE327B429F7", "versionEndExcluding": "6.18.39", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6228DDD6-4557-4AA3-9F43-AB995D471E42", "versionEndExcluding": "7.1.4", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}