{"id":"CVE-2026-52963","state":"PUBLISHED","title":"ALSA: usb-audio: Bound MIDI endpoint descriptor scans","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Bound MIDI endpoint descriptor scans\n\nsnd_usbmidi_get_ms_info() validates the internal MIDIStreaming endpoint\ndescriptor size before using baAssocJackID[], but the descriptor walker can\nstill return a class-specific endpoint descriptor whose bLength exceeds the\nremaining bytes in the endpoint-extra scan.\n\nThat leaves later flexible-array reads bounded by bLength, but not by the\nremaining bytes in the endpoint-extra scan.\n\nStop walking when bLength is zero or\nextends past the remaining endpoint-extra scan.","publishedAt":"2026-06-24T16:28:43.593Z","updatedAt":"2026-06-24T16:28:43.593Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"e2f1260a056eb3215c13c48c5378f3e4112dc3af","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"c65b137d351e21cbc5630e73ef0eb1e1d75f5b20","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"728ab0c72e49ca27185067984cd565425eb69b2e","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"a0226560540c16717efcceaf15c862cf115b01d3","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"09141583bd97f4bbd7358e29fd138fe798467cdb","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"c59159ce10e75b568cd0d4b29efcb0fb0ddecc94","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"d6854daa67be623860f4e1873fd3d3c275aba4ed","versionType":"git"},{"version":"9e0c71f2f633b0442661966228827d1a33df485f","status":"affected","versionType":"git"},{"version":"0868bc5654c07628c421547f0821650a8c2cb8f3","status":"affected","versionType":"git"},{"version":"78483c1c7741ffa72991d93d19a75bfdcc2cbf57","status":"affected","versionType":"git"},{"version":"65d95462001c6ccd9bc9499c1fc9a90eca9de496","status":"affected","versionType":"git"},{"version":"ca767cf0152d18fc299cde85b18d1f46ac21e1ba","status":"affected","versionType":"git"},{"version":"4.4.238","status":"affected","lessThan":"4.5","versionType":"semver"},{"version":"4.9.238","status":"affected","lessThan":"4.10","versionType":"semver"},{"version":"4.14.200","status":"affected","lessThan":"4.15","versionType":"semver"},{"version":"4.19.149","status":"affected","lessThan":"4.20","versionType":"semver"},{"version":"5.4.69","status":"affected","lessThan":"5.5","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/midi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/midi.c"]}],"references":["https://git.kernel.org/stable/c/e2f1260a056eb3215c13c48c5378f3e4112dc3af","https://git.kernel.org/stable/c/c65b137d351e21cbc5630e73ef0eb1e1d75f5b20","https://git.kernel.org/stable/c/728ab0c72e49ca27185067984cd565425eb69b2e","https://git.kernel.org/stable/c/3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e","https://git.kernel.org/stable/c/a0226560540c16717efcceaf15c862cf115b01d3","https://git.kernel.org/stable/c/09141583bd97f4bbd7358e29fd138fe798467cdb","https://git.kernel.org/stable/c/c59159ce10e75b568cd0d4b29efcb0fb0ddecc94","https://git.kernel.org/stable/c/d6854daa67be623860f4e1873fd3d3c275aba4ed"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/52xxx/CVE-2026-52963.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52963","state":"PUBLISHED","datePublished":"2026-06-24T16:28:43.593Z","dateUpdated":"2026-06-24T16:28:43.593Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.374Z"},"containers":{"cna":{"title":"ALSA: usb-audio: Bound MIDI endpoint descriptor scans","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Bound MIDI endpoint descriptor scans\n\nsnd_usbmidi_get_ms_info() validates the internal MIDIStreaming endpoint\ndescriptor size before using baAssocJackID[], but the descriptor walker can\nstill return a class-specific endpoint descriptor whose bLength exceeds the\nremaining bytes in the endpoint-extra scan.\n\nThat leaves later flexible-array reads bounded by bLength, but not by the\nremaining bytes in the endpoint-extra scan.\n\nStop walking when bLength is zero or\nextends past the remaining endpoint-extra scan."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"e2f1260a056eb3215c13c48c5378f3e4112dc3af","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"c65b137d351e21cbc5630e73ef0eb1e1d75f5b20","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"728ab0c72e49ca27185067984cd565425eb69b2e","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"a0226560540c16717efcceaf15c862cf115b01d3","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"09141583bd97f4bbd7358e29fd138fe798467cdb","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"c59159ce10e75b568cd0d4b29efcb0fb0ddecc94","versionType":"git"},{"version":"5c6cd7021a05a02fcf37f360592d7c18d4d807fb","status":"affected","lessThan":"d6854daa67be623860f4e1873fd3d3c275aba4ed","versionType":"git"},{"version":"9e0c71f2f633b0442661966228827d1a33df485f","status":"affected","versionType":"git"},{"version":"0868bc5654c07628c421547f0821650a8c2cb8f3","status":"affected","versionType":"git"},{"version":"78483c1c7741ffa72991d93d19a75bfdcc2cbf57","status":"affected","versionType":"git"},{"version":"65d95462001c6ccd9bc9499c1fc9a90eca9de496","status":"affected","versionType":"git"},{"version":"ca767cf0152d18fc299cde85b18d1f46ac21e1ba","status":"affected","versionType":"git"},{"version":"4.4.238","status":"affected","lessThan":"4.5","versionType":"semver"},{"version":"4.9.238","status":"affected","lessThan":"4.10","versionType":"semver"},{"version":"4.14.200","status":"affected","lessThan":"4.15","versionType":"semver"},{"version":"4.19.149","status":"affected","lessThan":"4.20","versionType":"semver"},{"version":"5.4.69","status":"affected","lessThan":"5.5","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/midi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/midi.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/e2f1260a056eb3215c13c48c5378f3e4112dc3af"},{"url":"https://git.kernel.org/stable/c/c65b137d351e21cbc5630e73ef0eb1e1d75f5b20"},{"url":"https://git.kernel.org/stable/c/728ab0c72e49ca27185067984cd565425eb69b2e"},{"url":"https://git.kernel.org/stable/c/3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e"},{"url":"https://git.kernel.org/stable/c/a0226560540c16717efcceaf15c862cf115b01d3"},{"url":"https://git.kernel.org/stable/c/09141583bd97f4bbd7358e29fd138fe798467cdb"},{"url":"https://git.kernel.org/stable/c/c59159ce10e75b568cd0d4b29efcb0fb0ddecc94"},{"url":"https://git.kernel.org/stable/c/d6854daa67be623860f4e1873fd3d3c275aba4ed"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-24T16:28:43.593Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.6.141"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.12.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*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