{"api_version":"1","generated_at":"2026-07-28T15:20:18+00:00","cve":"CVE-2026-64275","urls":{"html":"https://cve.report/CVE-2026-64275","api":"https://cve.report/api/cve/CVE-2026-64275.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64275","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64275"},"summary":{"title":"Input: elan_i2c - prevent division by zero and arithmetic underflow","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: elan_i2c - prevent division by zero and arithmetic underflow\n\nThe Elan I2C touchpad driver queries the device for its physical\ndimensions and trace counts to calculate the device resolution and width.\nHowever, if the device firmware or device tree provides invalid zero\nvalues for x_traces or y_traces, it results in a fatal division-by-zero\nexception leading to a kernel panic during device probe.\n\nAdd checks to ensure these parameters are non-zero before performing\nthe division. 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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:07","updated_at":"2026-07-25 10:17:07"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/6bac57d8fe2a077b8a85b4140eeb7999078158eb","name":"https://git.kernel.org/stable/c/6bac57d8fe2a077b8a85b4140eeb7999078158eb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/59d4cc5e7a9785e4bdc9c55273274c6b49d4b58d","name":"https://git.kernel.org/stable/c/59d4cc5e7a9785e4bdc9c55273274c6b49d4b58d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2f281ff0163a38fdc4cb4061f0c241e643283a5e","name":"https://git.kernel.org/stable/c/2f281ff0163a38fdc4cb4061f0c241e643283a5e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f6d10af2036d1d4a847a74fe47ebbf93bce3c84c","name":"https://git.kernel.org/stable/c/f6d10af2036d1d4a847a74fe47ebbf93bce3c84c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/01e0317c256c560d8dcce2e9825eb6142ee34611","name":"https://git.kernel.org/stable/c/01e0317c256c560d8dcce2e9825eb6142ee34611","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/df2b818fa009c10ff6ba875a1663ff001cda9558","name":"https://git.kernel.org/stable/c/df2b818fa009c10ff6ba875a1663ff001cda9558","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/feb4866a42ec94764c7eb58012256f6f37664727","name":"https://git.kernel.org/stable/c/feb4866a42ec94764c7eb58012256f6f37664727","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8c1db3418a419e788691746b9c47f863c2fd4890","name":"https://git.kernel.org/stable/c/8c1db3418a419e788691746b9c47f863c2fd4890","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64275","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64275","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6696777c6506fa52b2a0282121195843ed855be6 59d4cc5e7a9785e4bdc9c55273274c6b49d4b58d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6696777c6506fa52b2a0282121195843ed855be6 f6d10af2036d1d4a847a74fe47ebbf93bce3c84c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6696777c6506fa52b2a0282121195843ed855be6 2f281ff0163a38fdc4cb4061f0c241e643283a5e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6696777c6506fa52b2a0282121195843ed855be6 8c1db3418a419e788691746b9c47f863c2fd4890 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.96 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.39 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.4 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64275","cve":"CVE-2026-64275","epss":"0.002110000","percentile":"0.114280000","score_date":"2026-07-27","updated_at":"2026-07-28 00:07:44"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/input/mouse/elan_i2c_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"59d4cc5e7a9785e4bdc9c55273274c6b49d4b58d","status":"affected","version":"6696777c6506fa52b2a0282121195843ed855be6","versionType":"git"},{"lessThan":"f6d10af2036d1d4a847a74fe47ebbf93bce3c84c","status":"affected","version":"6696777c6506fa52b2a0282121195843ed855be6","versionType":"git"},{"lessThan":"2f281ff0163a38fdc4cb4061f0c241e643283a5e","status":"affected","version":"6696777c6506fa52b2a0282121195843ed855be6","versionType":"git"},{"lessThan":"8c1db3418a419e788691746b9c47f863c2fd4890","status":"affected","version":"6696777c6506fa52b2a0282121195843ed855be6","versionType":"git"},{"lessThan":"feb4866a42ec94764c7eb58012256f6f37664727","status":"affected","version":"6696777c6506fa52b2a0282121195843ed855be6","versionType":"git"},{"lessThan":"01e0317c256c560d8dcce2e9825eb6142ee34611","status":"affected","version":"6696777c6506fa52b2a0282121195843ed855be6","versionType":"git"},{"lessThan":"6bac57d8fe2a077b8a85b4140eeb7999078158eb","status":"affected","version":"6696777c6506fa52b2a0282121195843ed855be6","versionType":"git"},{"lessThan":"df2b818fa009c10ff6ba875a1663ff001cda9558","status":"affected","version":"6696777c6506fa52b2a0282121195843ed855be6","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/input/mouse/elan_i2c_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.19"},{"lessThan":"3.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.96","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"3.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"3.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: elan_i2c - prevent division by zero and arithmetic underflow\n\nThe Elan I2C touchpad driver queries the device for its physical\ndimensions and trace counts to calculate the device resolution and width.\nHowever, if the device firmware or device tree provides invalid zero\nvalues for x_traces or y_traces, it results in a fatal division-by-zero\nexception leading to a kernel panic during device probe.\n\nAdd checks to ensure these parameters are non-zero before performing\nthe division. 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."}],"providerMetadata":{"dateUpdated":"2026-07-25T08:49:20.669Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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 - prevent division by zero and arithmetic underflow","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64275","datePublished":"2026-07-25T08:49:20.669Z","dateReserved":"2026-07-19T15:36:31.776Z","dateUpdated":"2026-07-25T08:49:20.669Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:07","lastModifiedDate":"2026-07-25 10:17:07","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64275","Ordinal":"1","Title":"Input: elan_i2c - prevent division by zero and arithmetic underf","CVE":"CVE-2026-64275","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64275","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: elan_i2c - prevent division by zero and arithmetic underflow\n\nThe Elan I2C touchpad driver queries the device for its physical\ndimensions and trace counts to calculate the device resolution and width.\nHowever, if the device firmware or device tree provides invalid zero\nvalues for x_traces or y_traces, it results in a fatal division-by-zero\nexception leading to a kernel panic during device probe.\n\nAdd checks to ensure these parameters are non-zero before performing\nthe division. 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.","Type":"Description","Title":"Input: elan_i2c - prevent division by zero and arithmetic underf"}]}}}