{"api_version":"1","generated_at":"2026-07-26T14:50:50+00:00","cve":"CVE-2026-64483","urls":{"html":"https://cve.report/CVE-2026-64483","api":"https://cve.report/api/cve/CVE-2026-64483.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64483","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64483"},"summary":{"title":"ALSA: firewire: isight: bound the sample count to the packet payload","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: firewire: isight: bound the sample count to the packet payload\n\nisight_packet() takes the frame count from the device iso packet and\nchecks it only against the device claimed iso length.\n\n\tcount = be32_to_cpu(payload->sample_count);\n\tif (likely(count <= (length - 16) / 4))\n\t\tisight_samples(isight, payload->samples, count);\n\nlength is the iso header data_length. It can be up to 0xffff. So the\ngate allows a count up to about 16379. isight_samples() then copies\ncount frames out of payload->samples into the PCM DMA buffer.\n\npayload->samples holds only 2 * MAX_FRAMES_PER_PACKET values. The\ndevice multiplexes two samples per frame. A count past\nMAX_FRAMES_PER_PACKET reads past the payload. A count past the buffer\nsize writes past runtime->dma_area. The smallest PCM buffer is larger\nthan MAX_FRAMES_PER_PACKET. Bounding the count to MAX_FRAMES_PER_PACKET\nkeeps both the read and the write in range.\n\nA malicious or faulty Apple iSight on the FireWire bus reaches this\nduring a normal capture.\n\nAdd the MAX_FRAMES_PER_PACKET bound to the gate.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:33","updated_at":"2026-07-25 10:17:33"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/57e4d9043afc1eaddee8f50d11def6e65415d273","name":"https://git.kernel.org/stable/c/57e4d9043afc1eaddee8f50d11def6e65415d273","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/24423e0a9251d348c3f1fb0bb0e61b879e1e976c","name":"https://git.kernel.org/stable/c/24423e0a9251d348c3f1fb0bb0e61b879e1e976c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/31da82b9676c6b112e7c72c7529e6812b919742a","name":"https://git.kernel.org/stable/c/31da82b9676c6b112e7c72c7529e6812b919742a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/31a01b70bb90e3ef3147f308e2ea899e1d2485ca","name":"https://git.kernel.org/stable/c/31a01b70bb90e3ef3147f308e2ea899e1d2485ca","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3ed2fa1ed8cc65f910b8bbc0be3cc366b30f8478","name":"https://git.kernel.org/stable/c/3ed2fa1ed8cc65f910b8bbc0be3cc366b30f8478","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/29b9667982e4df2ed7744f86b1144f8bb58eb698","name":"https://git.kernel.org/stable/c/29b9667982e4df2ed7744f86b1144f8bb58eb698","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ebbffacda6733dcbcef601b5b523460f8d8b671e","name":"https://git.kernel.org/stable/c/ebbffacda6733dcbcef601b5b523460f8d8b671e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8e48a29813df8dd71503800b7acf69c12c035045","name":"https://git.kernel.org/stable/c/8e48a29813df8dd71503800b7acf69c12c035045","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64483","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64483","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3a691b28a0ca3cf4d9010c6158318159e0275d2c 24423e0a9251d348c3f1fb0bb0e61b879e1e976c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3a691b28a0ca3cf4d9010c6158318159e0275d2c ebbffacda6733dcbcef601b5b523460f8d8b671e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3a691b28a0ca3cf4d9010c6158318159e0275d2c 57e4d9043afc1eaddee8f50d11def6e65415d273 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3a691b28a0ca3cf4d9010c6158318159e0275d2c 3ed2fa1ed8cc65f910b8bbc0be3cc366b30f8478 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":"64483","cve":"CVE-2026-64483","epss":"0.002200000","percentile":"0.125940000","score_date":"2026-07-25","updated_at":"2026-07-26 00:12:33"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["sound/firewire/isight.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"24423e0a9251d348c3f1fb0bb0e61b879e1e976c","status":"affected","version":"3a691b28a0ca3cf4d9010c6158318159e0275d2c","versionType":"git"},{"lessThan":"ebbffacda6733dcbcef601b5b523460f8d8b671e","status":"affected","version":"3a691b28a0ca3cf4d9010c6158318159e0275d2c","versionType":"git"},{"lessThan":"57e4d9043afc1eaddee8f50d11def6e65415d273","status":"affected","version":"3a691b28a0ca3cf4d9010c6158318159e0275d2c","versionType":"git"},{"lessThan":"3ed2fa1ed8cc65f910b8bbc0be3cc366b30f8478","status":"affected","version":"3a691b28a0ca3cf4d9010c6158318159e0275d2c","versionType":"git"},{"lessThan":"31da82b9676c6b112e7c72c7529e6812b919742a","status":"affected","version":"3a691b28a0ca3cf4d9010c6158318159e0275d2c","versionType":"git"},{"lessThan":"8e48a29813df8dd71503800b7acf69c12c035045","status":"affected","version":"3a691b28a0ca3cf4d9010c6158318159e0275d2c","versionType":"git"},{"lessThan":"31a01b70bb90e3ef3147f308e2ea899e1d2485ca","status":"affected","version":"3a691b28a0ca3cf4d9010c6158318159e0275d2c","versionType":"git"},{"lessThan":"29b9667982e4df2ed7744f86b1144f8bb58eb698","status":"affected","version":"3a691b28a0ca3cf4d9010c6158318159e0275d2c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["sound/firewire/isight.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.0"},{"lessThan":"3.0","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":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"3.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: firewire: isight: bound the sample count to the packet payload\n\nisight_packet() takes the frame count from the device iso packet and\nchecks it only against the device claimed iso length.\n\n\tcount = be32_to_cpu(payload->sample_count);\n\tif (likely(count <= (length - 16) / 4))\n\t\tisight_samples(isight, payload->samples, count);\n\nlength is the iso header data_length. It can be up to 0xffff. So the\ngate allows a count up to about 16379. isight_samples() then copies\ncount frames out of payload->samples into the PCM DMA buffer.\n\npayload->samples holds only 2 * MAX_FRAMES_PER_PACKET values. The\ndevice multiplexes two samples per frame. A count past\nMAX_FRAMES_PER_PACKET reads past the payload. A count past the buffer\nsize writes past runtime->dma_area. The smallest PCM buffer is larger\nthan MAX_FRAMES_PER_PACKET. Bounding the count to MAX_FRAMES_PER_PACKET\nkeeps both the read and the write in range.\n\nA malicious or faulty Apple iSight on the FireWire bus reaches this\nduring a normal capture.\n\nAdd the MAX_FRAMES_PER_PACKET bound to the gate."}],"providerMetadata":{"dateUpdated":"2026-07-25T08:51:43.851Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/24423e0a9251d348c3f1fb0bb0e61b879e1e976c"},{"url":"https://git.kernel.org/stable/c/ebbffacda6733dcbcef601b5b523460f8d8b671e"},{"url":"https://git.kernel.org/stable/c/57e4d9043afc1eaddee8f50d11def6e65415d273"},{"url":"https://git.kernel.org/stable/c/3ed2fa1ed8cc65f910b8bbc0be3cc366b30f8478"},{"url":"https://git.kernel.org/stable/c/31da82b9676c6b112e7c72c7529e6812b919742a"},{"url":"https://git.kernel.org/stable/c/8e48a29813df8dd71503800b7acf69c12c035045"},{"url":"https://git.kernel.org/stable/c/31a01b70bb90e3ef3147f308e2ea899e1d2485ca"},{"url":"https://git.kernel.org/stable/c/29b9667982e4df2ed7744f86b1144f8bb58eb698"}],"title":"ALSA: firewire: isight: bound the sample count to the packet payload","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64483","datePublished":"2026-07-25T08:51:43.851Z","dateReserved":"2026-07-19T15:36:31.791Z","dateUpdated":"2026-07-25T08:51:43.851Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:33","lastModifiedDate":"2026-07-25 10:17:33","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64483","Ordinal":"1","Title":"ALSA: firewire: isight: bound the sample count to the packet pay","CVE":"CVE-2026-64483","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64483","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: firewire: isight: bound the sample count to the packet payload\n\nisight_packet() takes the frame count from the device iso packet and\nchecks it only against the device claimed iso length.\n\n\tcount = be32_to_cpu(payload->sample_count);\n\tif (likely(count <= (length - 16) / 4))\n\t\tisight_samples(isight, payload->samples, count);\n\nlength is the iso header data_length. It can be up to 0xffff. So the\ngate allows a count up to about 16379. isight_samples() then copies\ncount frames out of payload->samples into the PCM DMA buffer.\n\npayload->samples holds only 2 * MAX_FRAMES_PER_PACKET values. The\ndevice multiplexes two samples per frame. A count past\nMAX_FRAMES_PER_PACKET reads past the payload. A count past the buffer\nsize writes past runtime->dma_area. The smallest PCM buffer is larger\nthan MAX_FRAMES_PER_PACKET. Bounding the count to MAX_FRAMES_PER_PACKET\nkeeps both the read and the write in range.\n\nA malicious or faulty Apple iSight on the FireWire bus reaches this\nduring a normal capture.\n\nAdd the MAX_FRAMES_PER_PACKET bound to the gate.","Type":"Description","Title":"ALSA: firewire: isight: bound the sample count to the packet pay"}]}}}