{"api_version":"1","generated_at":"2026-08-02T00:23:07+00:00","cve":"CVE-2026-64333","urls":{"html":"https://cve.report/CVE-2026-64333","api":"https://cve.report/api/cve/CVE-2026-64333.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64333","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64333"},"summary":{"title":"USB: serial: digi_acceleport: fix write buffer corruption","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: digi_acceleport: fix write buffer corruption\n\nThe digi_write_inb_command() is supposed to wait for the write urb to\nbecome available or return an error, but instead it updates the transfer\nbuffer and tries to resubmit the urb on timeout.\n\nTo make things worse, for commands like break control where no timeout\nis used, the driver would corrupt the urb immediately due to a broken\njiffies comparison (on 32-bit machines this takes five minutes of uptime\nto trigger due to INITIAL_JIFFIES).\n\nFix this by adding the missing return on timeout and waiting\nindefinitely when no timeout has been specified as intended.\n\nThis issue was (sort of) flagged by Sashiko when reviewing an unrelated\nchange to the driver.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:15","updated_at":"2026-07-27 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Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64333","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 5d9dc88bdf8897788b0eed57113e9eca7fd42ea9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 2f296974acc279f05f284441bfe3064074958d11 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 e60e4873e9178da9f4f2674e4c2ff085d5a84f79 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 699dfb6917503b3cda4d5da6941cf79c3c1b4c8b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: digi_acceleport: fix write buffer corruption\n\nThe digi_write_inb_command() is supposed to wait for the write urb to\nbecome available or return an error, but instead it updates the transfer\nbuffer and tries to resubmit the urb on timeout.\n\nTo make things worse, for commands like break control where no timeout\nis used, the driver would corrupt the urb immediately due to a broken\njiffies comparison (on 32-bit machines this takes five minutes of uptime\nto trigger due to INITIAL_JIFFIES).\n\nFix this by adding the missing return on timeout and waiting\nindefinitely when no timeout has been specified as intended.\n\nThis issue was (sort of) flagged by Sashiko when reviewing an unrelated\nchange to the driver."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-07-27T04:59:51.692Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/5d9dc88bdf8897788b0eed57113e9eca7fd42ea9"},{"url":"https://git.kernel.org/stable/c/2f296974acc279f05f284441bfe3064074958d11"},{"url":"https://git.kernel.org/stable/c/e60e4873e9178da9f4f2674e4c2ff085d5a84f79"},{"url":"https://git.kernel.org/stable/c/699dfb6917503b3cda4d5da6941cf79c3c1b4c8b"},{"url":"https://git.kernel.org/stable/c/a274b3794fe1852c3d9fe6d900b94053c0b03410"},{"url":"https://git.kernel.org/stable/c/1243f120790042c2ac92e84e797dacc75fff4366"},{"url":"https://git.kernel.org/stable/c/a3a13fdc53103b07335918e2cdeb465038a71725"},{"url":"https://git.kernel.org/stable/c/24ca1fea8f2753bf33e1d458ec1ae5d9b7796a65"}],"title":"USB: serial: digi_acceleport: fix write buffer corruption","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64333","datePublished":"2026-07-25T08:49:59.616Z","dateReserved":"2026-07-19T15:36:31.781Z","dateUpdated":"2026-07-27T04:59:51.692Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:15","lastModifiedDate":"2026-07-27 05:16:42","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64333","Ordinal":"1","Title":"USB: serial: digi_acceleport: fix write buffer corruption","CVE":"CVE-2026-64333","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64333","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: digi_acceleport: fix write buffer corruption\n\nThe digi_write_inb_command() is supposed to wait for the write urb to\nbecome available or return an error, but instead it updates the transfer\nbuffer and tries to resubmit the urb on timeout.\n\nTo make things worse, for commands like break control where no timeout\nis used, the driver would corrupt the urb immediately due to a broken\njiffies comparison (on 32-bit machines this takes five minutes of uptime\nto trigger due to INITIAL_JIFFIES).\n\nFix this by adding the missing return on timeout and waiting\nindefinitely when no timeout has been specified as intended.\n\nThis issue was (sort of) flagged by Sashiko when reviewing an unrelated\nchange to the driver.","Type":"Description","Title":"USB: serial: digi_acceleport: fix write buffer corruption"}]}}}