{"api_version":"1","generated_at":"2026-07-23T21:20:26+00:00","cve":"CVE-2026-63904","urls":{"html":"https://cve.report/CVE-2026-63904","api":"https://cve.report/api/cve/CVE-2026-63904.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63904","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63904"},"summary":{"title":"usb: usbtmc: check URB actual_length for interrupt-IN notifications","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: usbtmc: check URB actual_length for interrupt-IN notifications\n\nUSBTMC devices can use an optional interrupt endpoint for notification\nmessages. These typically contain two-byte headers indicating the\npayload format, but the driver does not check if these headers are\npresent before accessing the data buffers. In cases where the URB\nactual_length is not enough to fit these headers, the driver will either\ncause an out-of-bounds read, or consume stale leftover data from a\nprevious notification.\n\nFix by checking if actual_data contains enough bytes for the headers,\notherwise resubmit URB to the interrupt endpoint.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:08","updated_at":"2026-07-19 16:17:08"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/75f6d3da2cc646983f41807ef98851569c12bca9","name":"https://git.kernel.org/stable/c/75f6d3da2cc646983f41807ef98851569c12bca9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e794bd67b3faf98af46f958897f6b91412c7d2a9","name":"https://git.kernel.org/stable/c/e794bd67b3faf98af46f958897f6b91412c7d2a9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e3eec3005de44e7f37d8d7724be636446516ab42","name":"https://git.kernel.org/stable/c/e3eec3005de44e7f37d8d7724be636446516ab42","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5de7df75ef3a2756b25fe3d582a4a2970444fe5a","name":"https://git.kernel.org/stable/c/5de7df75ef3a2756b25fe3d582a4a2970444fe5a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/52f2ad3f7e5eb3b5908e1d685d4342519dc9cfcd","name":"https://git.kernel.org/stable/c/52f2ad3f7e5eb3b5908e1d685d4342519dc9cfcd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ae87f505917e703ae3b487d9663d78826ff43608","name":"https://git.kernel.org/stable/c/ae87f505917e703ae3b487d9663d78826ff43608","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/69020fa089f1bf0e1a10a15265f31b143a846409","name":"https://git.kernel.org/stable/c/69020fa089f1bf0e1a10a15265f31b143a846409","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f141b01eaa58ac7e323931d670318aa247bff087","name":"https://git.kernel.org/stable/c/f141b01eaa58ac7e323931d670318aa247bff087","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63904","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63904","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected dbf3e7f654c0f06a932b8fcafac78de9d0b81d68 e794bd67b3faf98af46f958897f6b91412c7d2a9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected dbf3e7f654c0f06a932b8fcafac78de9d0b81d68 e3eec3005de44e7f37d8d7724be636446516ab42 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected dbf3e7f654c0f06a932b8fcafac78de9d0b81d68 ae87f505917e703ae3b487d9663d78826ff43608 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected dbf3e7f654c0f06a932b8fcafac78de9d0b81d68 5de7df75ef3a2756b25fe3d582a4a2970444fe5a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/class/usbtmc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e794bd67b3faf98af46f958897f6b91412c7d2a9","status":"affected","version":"dbf3e7f654c0f06a932b8fcafac78de9d0b81d68","versionType":"git"},{"lessThan":"e3eec3005de44e7f37d8d7724be636446516ab42","status":"affected","version":"dbf3e7f654c0f06a932b8fcafac78de9d0b81d68","versionType":"git"},{"lessThan":"ae87f505917e703ae3b487d9663d78826ff43608","status":"affected","version":"dbf3e7f654c0f06a932b8fcafac78de9d0b81d68","versionType":"git"},{"lessThan":"5de7df75ef3a2756b25fe3d582a4a2970444fe5a","status":"affected","version":"dbf3e7f654c0f06a932b8fcafac78de9d0b81d68","versionType":"git"},{"lessThan":"69020fa089f1bf0e1a10a15265f31b143a846409","status":"affected","version":"dbf3e7f654c0f06a932b8fcafac78de9d0b81d68","versionType":"git"},{"lessThan":"75f6d3da2cc646983f41807ef98851569c12bca9","status":"affected","version":"dbf3e7f654c0f06a932b8fcafac78de9d0b81d68","versionType":"git"},{"lessThan":"f141b01eaa58ac7e323931d670318aa247bff087","status":"affected","version":"dbf3e7f654c0f06a932b8fcafac78de9d0b81d68","versionType":"git"},{"lessThan":"52f2ad3f7e5eb3b5908e1d685d4342519dc9cfcd","status":"affected","version":"dbf3e7f654c0f06a932b8fcafac78de9d0b81d68","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/class/usbtmc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.6"},{"lessThan":"4.6","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":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.210","versionStartIncluding":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.93","versionStartIncluding":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.35","versionStartIncluding":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.12","versionStartIncluding":"4.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"4.6","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: usbtmc: check URB actual_length for interrupt-IN notifications\n\nUSBTMC devices can use an optional interrupt endpoint for notification\nmessages. These typically contain two-byte headers indicating the\npayload format, but the driver does not check if these headers are\npresent before accessing the data buffers. In cases where the URB\nactual_length is not enough to fit these headers, the driver will either\ncause an out-of-bounds read, or consume stale leftover data from a\nprevious notification.\n\nFix by checking if actual_data contains enough bytes for the headers,\notherwise resubmit URB to the interrupt endpoint."}],"providerMetadata":{"dateUpdated":"2026-07-19T14:55:11.547Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/e794bd67b3faf98af46f958897f6b91412c7d2a9"},{"url":"https://git.kernel.org/stable/c/e3eec3005de44e7f37d8d7724be636446516ab42"},{"url":"https://git.kernel.org/stable/c/ae87f505917e703ae3b487d9663d78826ff43608"},{"url":"https://git.kernel.org/stable/c/5de7df75ef3a2756b25fe3d582a4a2970444fe5a"},{"url":"https://git.kernel.org/stable/c/69020fa089f1bf0e1a10a15265f31b143a846409"},{"url":"https://git.kernel.org/stable/c/75f6d3da2cc646983f41807ef98851569c12bca9"},{"url":"https://git.kernel.org/stable/c/f141b01eaa58ac7e323931d670318aa247bff087"},{"url":"https://git.kernel.org/stable/c/52f2ad3f7e5eb3b5908e1d685d4342519dc9cfcd"}],"title":"usb: usbtmc: check URB actual_length for interrupt-IN notifications","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-63904","datePublished":"2026-07-19T14:55:11.547Z","dateReserved":"2026-07-19T07:54:57.019Z","dateUpdated":"2026-07-19T14:55:11.547Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:08","lastModifiedDate":"2026-07-19 16:17:08","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"63904","Ordinal":"1","Title":"usb: usbtmc: check URB actual_length for interrupt-IN notificati","CVE":"CVE-2026-63904","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"63904","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: usbtmc: check URB actual_length for interrupt-IN notifications\n\nUSBTMC devices can use an optional interrupt endpoint for notification\nmessages. These typically contain two-byte headers indicating the\npayload format, but the driver does not check if these headers are\npresent before accessing the data buffers. In cases where the URB\nactual_length is not enough to fit these headers, the driver will either\ncause an out-of-bounds read, or consume stale leftover data from a\nprevious notification.\n\nFix by checking if actual_data contains enough bytes for the headers,\notherwise resubmit URB to the interrupt endpoint.","Type":"Description","Title":"usb: usbtmc: check URB actual_length for interrupt-IN notificati"}]}}}