{"api_version":"1","generated_at":"2026-07-23T10:07:12+00:00","cve":"CVE-2026-64014","urls":{"html":"https://cve.report/CVE-2026-64014","api":"https://cve.report/api/cve/CVE-2026-64014.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64014","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64014"},"summary":{"title":"Input: usbtouchscreen - clamp NEXIO data_len/x_len to URB buffer size","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: usbtouchscreen - clamp NEXIO data_len/x_len to URB buffer size\n\nnexio_read_data() pulls data_len and x_len from a packed __be16 header\nin the device's interrupt packet and then walks packet->data[0..x_len)\nand packet->data[x_len..data_len) comparing each byte against a\nthreshold.\n\nBoth fields are 16-bit on the wire (max 65535).  The existing\nadjustments shave at most 0x100 / 0x80 off, so the loop bound can still\nreach roughly 0xfeff.  The URB transfer buffer for NEXIO is rept_size\n(1024) bytes from usb_alloc_coherent(), with the first 7 occupied by the\npacked header — so packet->data[] has 1017 valid bytes.  read_data()\ncallbacks are not given urb->actual_length, and nothing else bounds the\nwalk.\n\nA device that lies about its length can get a ~64 KiB out-of-bounds read\npast the coherent DMA allocation.  The first index whose byte exceeds\nNEXIO_THRESHOLD lands in begin_x / begin_y and from there into the\nreported touch coordinates, so adjacent kernel memory contents leak to\nuserspace as ABS_X / ABS_Y events.  Far enough out, the read can also\nhit an unmapped page and fault.\n\nFix this all by clamping data_len to the buffer's data[] capacity and\nx_len to data_len.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:41","updated_at":"2026-07-19 16:17:41"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2905281cbda52ec9df540113b35b835feb5fafd3","name":"https://git.kernel.org/stable/c/2905281cbda52ec9df540113b35b835feb5fafd3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/45c829e5eb3b974282bae50b7cca2cc891f74f0b","name":"https://git.kernel.org/stable/c/45c829e5eb3b974282bae50b7cca2cc891f74f0b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0ca809ea8e0355299266c46e5f1755040aa8dcf3","name":"https://git.kernel.org/stable/c/0ca809ea8e0355299266c46e5f1755040aa8dcf3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7585b6aa55d8ac85ad22f522e1059f93507727b6","name":"https://git.kernel.org/stable/c/7585b6aa55d8ac85ad22f522e1059f93507727b6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e7cdcb266ba06d8480809b78ab8bb2bf8ff51ccb","name":"https://git.kernel.org/stable/c/e7cdcb266ba06d8480809b78ab8bb2bf8ff51ccb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/95f47331dfde243f93e679ce70bd0c24b37c683d","name":"https://git.kernel.org/stable/c/95f47331dfde243f93e679ce70bd0c24b37c683d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/103d2de9f505f56da173e43f12dba62f92620278","name":"https://git.kernel.org/stable/c/103d2de9f505f56da173e43f12dba62f92620278","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d883312061ccde8c536595998aaf687ec070077c","name":"https://git.kernel.org/stable/c/d883312061ccde8c536595998aaf687ec070077c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64014","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64014","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5197424cdcccd2b0b1922babb93969b2515c43ce 45c829e5eb3b974282bae50b7cca2cc891f74f0b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5197424cdcccd2b0b1922babb93969b2515c43ce e7cdcb266ba06d8480809b78ab8bb2bf8ff51ccb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5197424cdcccd2b0b1922babb93969b2515c43ce 95f47331dfde243f93e679ce70bd0c24b37c683d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5197424cdcccd2b0b1922babb93969b2515c43ce d883312061ccde8c536595998aaf687ec070077c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.210 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.176 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.143 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.93 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.35 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.12 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64014","cve":"CVE-2026-64014","epss":"0.001760000","percentile":"0.073880000","score_date":"2026-07-20","updated_at":"2026-07-21 00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/input/touchscreen/usbtouchscreen.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"45c829e5eb3b974282bae50b7cca2cc891f74f0b","status":"affected","version":"5197424cdcccd2b0b1922babb93969b2515c43ce","versionType":"git"},{"lessThan":"e7cdcb266ba06d8480809b78ab8bb2bf8ff51ccb","status":"affected","version":"5197424cdcccd2b0b1922babb93969b2515c43ce","versionType":"git"},{"lessThan":"95f47331dfde243f93e679ce70bd0c24b37c683d","status":"affected","version":"5197424cdcccd2b0b1922babb93969b2515c43ce","versionType":"git"},{"lessThan":"d883312061ccde8c536595998aaf687ec070077c","status":"affected","version":"5197424cdcccd2b0b1922babb93969b2515c43ce","versionType":"git"},{"lessThan":"103d2de9f505f56da173e43f12dba62f92620278","status":"affected","version":"5197424cdcccd2b0b1922babb93969b2515c43ce","versionType":"git"},{"lessThan":"0ca809ea8e0355299266c46e5f1755040aa8dcf3","status":"affected","version":"5197424cdcccd2b0b1922babb93969b2515c43ce","versionType":"git"},{"lessThan":"7585b6aa55d8ac85ad22f522e1059f93507727b6","status":"affected","version":"5197424cdcccd2b0b1922babb93969b2515c43ce","versionType":"git"},{"lessThan":"2905281cbda52ec9df540113b35b835feb5fafd3","status":"affected","version":"5197424cdcccd2b0b1922babb93969b2515c43ce","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/input/touchscreen/usbtouchscreen.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.34"},{"lessThan":"2.6.34","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.93","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.259","versionStartIncluding":"2.6.34","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.210","versionStartIncluding":"2.6.34","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"2.6.34","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"2.6.34","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.93","versionStartIncluding":"2.6.34","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.35","versionStartIncluding":"2.6.34","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.12","versionStartIncluding":"2.6.34","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"2.6.34","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: usbtouchscreen - clamp NEXIO data_len/x_len to URB buffer size\n\nnexio_read_data() pulls data_len and x_len from a packed __be16 header\nin the device's interrupt packet and then walks packet->data[0..x_len)\nand packet->data[x_len..data_len) comparing each byte against a\nthreshold.\n\nBoth fields are 16-bit on the wire (max 65535).  The existing\nadjustments shave at most 0x100 / 0x80 off, so the loop bound can still\nreach roughly 0xfeff.  The URB transfer buffer for NEXIO is rept_size\n(1024) bytes from usb_alloc_coherent(), with the first 7 occupied by the\npacked header — so packet->data[] has 1017 valid bytes.  read_data()\ncallbacks are not given urb->actual_length, and nothing else bounds the\nwalk.\n\nA device that lies about its length can get a ~64 KiB out-of-bounds read\npast the coherent DMA allocation.  The first index whose byte exceeds\nNEXIO_THRESHOLD lands in begin_x / begin_y and from there into the\nreported touch coordinates, so adjacent kernel memory contents leak to\nuserspace as ABS_X / ABS_Y events.  Far enough out, the read can also\nhit an unmapped page and fault.\n\nFix this all by clamping data_len to the buffer's data[] capacity and\nx_len to data_len."}],"providerMetadata":{"dateUpdated":"2026-07-19T14:56:27.995Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/45c829e5eb3b974282bae50b7cca2cc891f74f0b"},{"url":"https://git.kernel.org/stable/c/e7cdcb266ba06d8480809b78ab8bb2bf8ff51ccb"},{"url":"https://git.kernel.org/stable/c/95f47331dfde243f93e679ce70bd0c24b37c683d"},{"url":"https://git.kernel.org/stable/c/d883312061ccde8c536595998aaf687ec070077c"},{"url":"https://git.kernel.org/stable/c/103d2de9f505f56da173e43f12dba62f92620278"},{"url":"https://git.kernel.org/stable/c/0ca809ea8e0355299266c46e5f1755040aa8dcf3"},{"url":"https://git.kernel.org/stable/c/7585b6aa55d8ac85ad22f522e1059f93507727b6"},{"url":"https://git.kernel.org/stable/c/2905281cbda52ec9df540113b35b835feb5fafd3"}],"title":"Input: usbtouchscreen - clamp NEXIO data_len/x_len to URB buffer size","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64014","datePublished":"2026-07-19T14:56:27.995Z","dateReserved":"2026-07-19T07:54:57.027Z","dateUpdated":"2026-07-19T14:56:27.995Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:41","lastModifiedDate":"2026-07-19 16:17:41","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64014","Ordinal":"1","Title":"Input: usbtouchscreen - clamp NEXIO data_len/x_len to URB buffer","CVE":"CVE-2026-64014","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64014","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: usbtouchscreen - clamp NEXIO data_len/x_len to URB buffer size\n\nnexio_read_data() pulls data_len and x_len from a packed __be16 header\nin the device's interrupt packet and then walks packet->data[0..x_len)\nand packet->data[x_len..data_len) comparing each byte against a\nthreshold.\n\nBoth fields are 16-bit on the wire (max 65535).  The existing\nadjustments shave at most 0x100 / 0x80 off, so the loop bound can still\nreach roughly 0xfeff.  The URB transfer buffer for NEXIO is rept_size\n(1024) bytes from usb_alloc_coherent(), with the first 7 occupied by the\npacked header — so packet->data[] has 1017 valid bytes.  read_data()\ncallbacks are not given urb->actual_length, and nothing else bounds the\nwalk.\n\nA device that lies about its length can get a ~64 KiB out-of-bounds read\npast the coherent DMA allocation.  The first index whose byte exceeds\nNEXIO_THRESHOLD lands in begin_x / begin_y and from there into the\nreported touch coordinates, so adjacent kernel memory contents leak to\nuserspace as ABS_X / ABS_Y events.  Far enough out, the read can also\nhit an unmapped page and fault.\n\nFix this all by clamping data_len to the buffer's data[] capacity and\nx_len to data_len.","Type":"Description","Title":"Input: usbtouchscreen - clamp NEXIO data_len/x_len to URB buffer"}]}}}