CVE-2026-64275

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If invalid trace values are detected, fall back to a safe\ndefault of 1.\n\nAdditionally, prevent an arithmetic underflow in the touch reporting\nlogic. Previously, if the calculated or fallback width was smaller than\nETP_FWIDTH_REDUCE (90), the subtraction would underflow, resulting in a\nmassive unsigned integer being reported to userspace. Clamp the adjusted\nwidth to a minimum of 0 to safely handle small physical dimensions and\nfallback scenarios.\n\nCompleting the probe with safe fallback values ensures the sysfs nodes\nare created, keeping the firmware update path intact so a recovery\nfirmware can be flashed to the device."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/input/mouse/elan_i2c_core.c"], "versions": [{"version": "6696777c6506fa52b2a0282121195843ed855be6", "lessThan": "59d4cc5e7a9785e4bdc9c55273274c6b49d4b58d", "status": "affected", "versionType": "git"}, {"version": "6696777c6506fa52b2a0282121195843ed855be6", "lessThan": "f6d10af2036d1d4a847a74fe47ebbf93bce3c84c", "status": "affected", "versionType": "git"}, {"version": "6696777c6506fa52b2a0282121195843ed855be6", "lessThan": "2f281ff0163a38fdc4cb4061f0c241e643283a5e", "status": "affected", "versionType": "git"}, {"version": "6696777c6506fa52b2a0282121195843ed855be6", "lessThan": "8c1db3418a419e788691746b9c47f863c2fd4890", "status": "affected", "versionType": "git"}, {"version": "6696777c6506fa52b2a0282121195843ed855be6", "lessThan": "feb4866a42ec94764c7eb58012256f6f37664727", "status": "affected", "versionType": "git"}, {"version": "6696777c6506fa52b2a0282121195843ed855be6", "lessThan": "01e0317c256c560d8dcce2e9825eb6142ee34611", "status": "affected", "versionType": "git"}, {"version": "6696777c6506fa52b2a0282121195843ed855be6", "lessThan": "6bac57d8fe2a077b8a85b4140eeb7999078158eb", "status": "affected", "versionType": "git"}, {"version": "6696777c6506fa52b2a0282121195843ed855be6", "lessThan": "df2b818fa009c10ff6ba875a1663ff001cda9558", "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/input/mouse/elan_i2c_core.c"], "versions": [{"version": "3.19", "status": "affected"}, {"version": "0", "lessThan": "3.19", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.261", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.96", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.39", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.4", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "3.19", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.12.96"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.18.39"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "7.1.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/59d4cc5e7a9785e4bdc9c55273274c6b49d4b58d"}, {"url": "https://git.kernel.org/stable/c/f6d10af2036d1d4a847a74fe47ebbf93bce3c84c"}, {"url": "https://git.kernel.org/stable/c/2f281ff0163a38fdc4cb4061f0c241e643283a5e"}, {"url": "https://git.kernel.org/stable/c/8c1db3418a419e788691746b9c47f863c2fd4890"}, {"url": "https://git.kernel.org/stable/c/feb4866a42ec94764c7eb58012256f6f37664727"}, {"url": "https://git.kernel.org/stable/c/01e0317c256c560d8dcce2e9825eb6142ee34611"}, {"url": "https://git.kernel.org/stable/c/6bac57d8fe2a077b8a85b4140eeb7999078158eb"}, {"url": "https://git.kernel.org/stable/c/df2b818fa009c10ff6ba875a1663ff001cda9558"}], "title": "Input: elan_i2c - 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If invalid trace values are detected, fall back to a safe\ndefault of 1.\n\nAdditionally, prevent an arithmetic underflow in the touch reporting\nlogic. Previously, if the calculated or fallback width was smaller than\nETP_FWIDTH_REDUCE (90), the subtraction would underflow, resulting in a\nmassive unsigned integer being reported to userspace. Clamp the adjusted\nwidth to a minimum of 0 to safely handle small physical dimensions and\nfallback scenarios.\n\nCompleting the probe with safe fallback values ensures the sysfs nodes\nare created, keeping the firmware update path intact so a recovery\nfirmware can be flashed to the device."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nEntrada: elan_i2c - prevenir la divisi\u00f3n por cero y el desbordamiento negativo aritm\u00e9tico\n\nEl controlador del panel t\u00e1ctil Elan I2C consulta el dispositivo para sus dimensiones f\u00edsicas y recuentos de trazas para calcular la resoluci\u00f3n y el ancho del dispositivo. Sin embargo, si el firmware del dispositivo o el \u00e1rbol de dispositivos proporciona valores cero inv\u00e1lidos para x_traces o y_traces, resulta en una excepci\u00f3n fatal de divisi\u00f3n por cero que lleva a un p\u00e1nico del kernel durante la detecci\u00f3n del dispositivo.\n\nA\u00f1adir comprobaciones para asegurar que estos par\u00e1metros no sean cero antes de realizar la divisi\u00f3n. Si se detectan valores de traza inv\u00e1lidos, se recurre a un valor predeterminado seguro de 1.\n\nAdem\u00e1s, prevenir un desbordamiento negativo aritm\u00e9tico en la l\u00f3gica de informe t\u00e1ctil. Anteriormente, si el ancho calculado o de respaldo era menor que ETP_FWIDTH_REDUCE (90), la resta sufrir\u00eda un desbordamiento negativo, resultando en un entero sin signo masivo siendo informado al espacio de usuario. Limitar el ancho ajustado a un m\u00ednimo de 0 para manejar de forma segura peque\u00f1as dimensiones f\u00edsicas y escenarios de respaldo.\n\nCompletar la detecci\u00f3n con valores de respaldo seguros asegura que los nodos sysfs sean creados, manteniendo intacta la ruta de actualizaci\u00f3n del firmware para que un firmware de recuperaci\u00f3n pueda ser flasheado al dispositivo."}], "id": "CVE-2026-64275", "lastModified": "2026-11-06T17:18:45.083", "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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-64275", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:33:38.485466Z", "version": "2.0.3"}}]}, "published": "2026-07-25T10:17:07.927", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/01e0317c256c560d8dcce2e9825eb6142ee34611"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2f281ff0163a38fdc4cb4061f0c241e643283a5e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/59d4cc5e7a9785e4bdc9c55273274c6b49d4b58d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6bac57d8fe2a077b8a85b4140eeb7999078158eb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8c1db3418a419e788691746b9c47f863c2fd4890"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/df2b818fa009c10ff6ba875a1663ff001cda9558"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f6d10af2036d1d4a847a74fe47ebbf93bce3c84c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/feb4866a42ec94764c7eb58012256f6f37664727"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-369"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: Input: elan_i2c - prevent division by zero and arithmetic underflow", "id": "2507196", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507196"}, "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"}, "cwe": "CWE-369", "details": ["A flaw was found in the Linux kernel's Elan I2C touchpad driver. This vulnerability occurs when the driver receives invalid zero values for touchpad dimensions from device firmware or the device tree, or when a calculated width is too small. A local attacker with control over device input or a malicious device could exploit this to trigger a division-by-zero error, leading to a kernel panic and a denial of service."], "name": "CVE-2026-64275", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64275\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64275\nhttps://lore.kernel.org/linux-cve-announce/2026072500-CVE-2026-64275-7f24@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6696777c6506fa52b2a0282121195843ed855be6,59d4cc5e7a9785e4bdc9c55273274c6b49d4b58d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6696777c6506fa52b2a0282121195843ed855be6,f6d10af2036d1d4a847a74fe47ebbf93bce3c84c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6696777c6506fa52b2a0282121195843ed855be6,2f281ff0163a38fdc4cb4061f0c241e643283a5e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6696777c6506fa52b2a0282121195843ed855be6,8c1db3418a419e788691746b9c47f863c2fd4890)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6696777c6506fa52b2a0282121195843ed855be6,feb4866a42ec94764c7eb58012256f6f37664727)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6696777c6506fa52b2a0282121195843ed855be6,01e0317c256c560d8dcce2e9825eb6142ee34611)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6696777c6506fa52b2a0282121195843ed855be6,6bac57d8fe2a077b8a85b4140eeb7999078158eb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[6696777c6506fa52b2a0282121195843ed855be6,df2b818fa009c10ff6ba875a1663ff001cda9558)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,3.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.261,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.212,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.96,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.39,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.4,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-25T11:15:04.067394+00:00", "updated": "2026-08-04T15:00:14.005522+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}