{"api_version":"1","generated_at":"2026-08-01T21:57:04+00:00","cve":"CVE-2026-64330","urls":{"html":"https://cve.report/CVE-2026-64330","api":"https://cve.report/api/cve/CVE-2026-64330.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64330","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64330"},"summary":{"title":"usb: typec: tcpm: Validate SVID index in svdm_consume_modes()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpm: Validate SVID index in svdm_consume_modes()\n\nIn svdm_consume_modes(), the SVID value is read from pmdata->svids using\npmdata->svid_index as an array index without bounds validation:\n\n    paltmode->svid = pmdata->svids[pmdata->svid_index];\n\nIf pmdata->svid_index is driven beyond SVID_DISCOVERY_MAX (16), it results\nin an out-of-bounds read of the pmdata->svids array. Because pd_mode_data\nis embedded inside struct tcpm_port, indexing past svids reads into\nadjacent fields. In particular:\n- At index 16, it reads the altmodes count.\n- At index 18 and beyond, it reads into altmode_desc[], which contains\n  partner-supplied SVDM Discovery Modes VDOs.\n\nBy injecting a chosen SVID into altmode_desc[0].vdo and driving svid_index\nto 20, the partner can force paltmode->svid to be loaded with an arbitrary,\npartner- chosen SVID, which is then registered via\ntypec_partner_register_altmode().\n\nFix this by validating that pmdata->svid_index is non-negative and strictly\nless than pmdata->nsvids before accessing the pmdata->svids array inside\nsvdm_consume_modes().","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:14","updated_at":"2026-07-25 10:17:14"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/3e1b1ac47e8163627f159f30d80d51b914620dd4","name":"https://git.kernel.org/stable/c/3e1b1ac47e8163627f159f30d80d51b914620dd4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/89ff289cbf5d3b659a2babc5ccaae4eaf7e7cf53","name":"https://git.kernel.org/stable/c/89ff289cbf5d3b659a2babc5ccaae4eaf7e7cf53","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7b681dd5fbf60b24a13c14661e5b7735759fb491","name":"https://git.kernel.org/stable/c/7b681dd5fbf60b24a13c14661e5b7735759fb491","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/313ca06e7e224ca1dfadd5722fe71fb8bc276b8b","name":"https://git.kernel.org/stable/c/313ca06e7e224ca1dfadd5722fe71fb8bc276b8b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/012406f89abc52d1d5f07aa5653b519ebf6d2407","name":"https://git.kernel.org/stable/c/012406f89abc52d1d5f07aa5653b519ebf6d2407","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c6d2af3b217a525741c472f0ab45d7d274b8468f","name":"https://git.kernel.org/stable/c/c6d2af3b217a525741c472f0ab45d7d274b8468f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d638ec188e95fe60f4b01106ffd41958f8fb3c2c","name":"https://git.kernel.org/stable/c/d638ec188e95fe60f4b01106ffd41958f8fb3c2c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f8163c414de8640f2ca82ce4dc93409d4cdc2fad","name":"https://git.kernel.org/stable/c/f8163c414de8640f2ca82ce4dc93409d4cdc2fad","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64330","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64330","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ab8c18d4d67321cc7b660559de17511d4fc0237 89ff289cbf5d3b659a2babc5ccaae4eaf7e7cf53 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ab8c18d4d67321cc7b660559de17511d4fc0237 d638ec188e95fe60f4b01106ffd41958f8fb3c2c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ab8c18d4d67321cc7b660559de17511d4fc0237 f8163c414de8640f2ca82ce4dc93409d4cdc2fad git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ab8c18d4d67321cc7b660559de17511d4fc0237 012406f89abc52d1d5f07aa5653b519ebf6d2407 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ab8c18d4d67321cc7b660559de17511d4fc0237 c6d2af3b217a525741c472f0ab45d7d274b8468f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ab8c18d4d67321cc7b660559de17511d4fc0237 3e1b1ac47e8163627f159f30d80d51b914620dd4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ab8c18d4d67321cc7b660559de17511d4fc0237 313ca06e7e224ca1dfadd5722fe71fb8bc276b8b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4ab8c18d4d67321cc7b660559de17511d4fc0237 7b681dd5fbf60b24a13c14661e5b7735759fb491 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.261 5.10.* 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-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64330","cve":"CVE-2026-64330","epss":"0.001770000","percentile":"0.075010000","score_date":"2026-07-28","updated_at":"2026-07-29 00:05:33"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/typec/tcpm/tcpm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"89ff289cbf5d3b659a2babc5ccaae4eaf7e7cf53","status":"affected","version":"4ab8c18d4d67321cc7b660559de17511d4fc0237","versionType":"git"},{"lessThan":"d638ec188e95fe60f4b01106ffd41958f8fb3c2c","status":"affected","version":"4ab8c18d4d67321cc7b660559de17511d4fc0237","versionType":"git"},{"lessThan":"f8163c414de8640f2ca82ce4dc93409d4cdc2fad","status":"affected","version":"4ab8c18d4d67321cc7b660559de17511d4fc0237","versionType":"git"},{"lessThan":"012406f89abc52d1d5f07aa5653b519ebf6d2407","status":"affected","version":"4ab8c18d4d67321cc7b660559de17511d4fc0237","versionType":"git"},{"lessThan":"c6d2af3b217a525741c472f0ab45d7d274b8468f","status":"affected","version":"4ab8c18d4d67321cc7b660559de17511d4fc0237","versionType":"git"},{"lessThan":"3e1b1ac47e8163627f159f30d80d51b914620dd4","status":"affected","version":"4ab8c18d4d67321cc7b660559de17511d4fc0237","versionType":"git"},{"lessThan":"313ca06e7e224ca1dfadd5722fe71fb8bc276b8b","status":"affected","version":"4ab8c18d4d67321cc7b660559de17511d4fc0237","versionType":"git"},{"lessThan":"7b681dd5fbf60b24a13c14661e5b7735759fb491","status":"affected","version":"4ab8c18d4d67321cc7b660559de17511d4fc0237","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/typec/tcpm/tcpm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","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-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc3","versionStartIncluding":"4.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpm: Validate SVID index in svdm_consume_modes()\n\nIn svdm_consume_modes(), the SVID value is read from pmdata->svids using\npmdata->svid_index as an array index without bounds validation:\n\n    paltmode->svid = pmdata->svids[pmdata->svid_index];\n\nIf pmdata->svid_index is driven beyond SVID_DISCOVERY_MAX (16), it results\nin an out-of-bounds read of the pmdata->svids array. Because pd_mode_data\nis embedded inside struct tcpm_port, indexing past svids reads into\nadjacent fields. In particular:\n- At index 16, it reads the altmodes count.\n- At index 18 and beyond, it reads into altmode_desc[], which contains\n  partner-supplied SVDM Discovery Modes VDOs.\n\nBy injecting a chosen SVID into altmode_desc[0].vdo and driving svid_index\nto 20, the partner can force paltmode->svid to be loaded with an arbitrary,\npartner- chosen SVID, which is then registered via\ntypec_partner_register_altmode().\n\nFix this by validating that pmdata->svid_index is non-negative and strictly\nless than pmdata->nsvids before accessing the pmdata->svids array inside\nsvdm_consume_modes()."}],"providerMetadata":{"dateUpdated":"2026-07-25T08:49:57.734Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/89ff289cbf5d3b659a2babc5ccaae4eaf7e7cf53"},{"url":"https://git.kernel.org/stable/c/d638ec188e95fe60f4b01106ffd41958f8fb3c2c"},{"url":"https://git.kernel.org/stable/c/f8163c414de8640f2ca82ce4dc93409d4cdc2fad"},{"url":"https://git.kernel.org/stable/c/012406f89abc52d1d5f07aa5653b519ebf6d2407"},{"url":"https://git.kernel.org/stable/c/c6d2af3b217a525741c472f0ab45d7d274b8468f"},{"url":"https://git.kernel.org/stable/c/3e1b1ac47e8163627f159f30d80d51b914620dd4"},{"url":"https://git.kernel.org/stable/c/313ca06e7e224ca1dfadd5722fe71fb8bc276b8b"},{"url":"https://git.kernel.org/stable/c/7b681dd5fbf60b24a13c14661e5b7735759fb491"}],"title":"usb: typec: tcpm: Validate SVID index in svdm_consume_modes()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64330","datePublished":"2026-07-25T08:49:57.734Z","dateReserved":"2026-07-19T15:36:31.781Z","dateUpdated":"2026-07-25T08:49:57.734Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:14","lastModifiedDate":"2026-07-25 10:17:14","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64330","Ordinal":"1","Title":"usb: typec: tcpm: Validate SVID index in svdm_consume_modes()","CVE":"CVE-2026-64330","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64330","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpm: Validate SVID index in svdm_consume_modes()\n\nIn svdm_consume_modes(), the SVID value is read from pmdata->svids using\npmdata->svid_index as an array index without bounds validation:\n\n    paltmode->svid = pmdata->svids[pmdata->svid_index];\n\nIf pmdata->svid_index is driven beyond SVID_DISCOVERY_MAX (16), it results\nin an out-of-bounds read of the pmdata->svids array. Because pd_mode_data\nis embedded inside struct tcpm_port, indexing past svids reads into\nadjacent fields. In particular:\n- At index 16, it reads the altmodes count.\n- At index 18 and beyond, it reads into altmode_desc[], which contains\n  partner-supplied SVDM Discovery Modes VDOs.\n\nBy injecting a chosen SVID into altmode_desc[0].vdo and driving svid_index\nto 20, the partner can force paltmode->svid to be loaded with an arbitrary,\npartner- chosen SVID, which is then registered via\ntypec_partner_register_altmode().\n\nFix this by validating that pmdata->svid_index is non-negative and strictly\nless than pmdata->nsvids before accessing the pmdata->svids array inside\nsvdm_consume_modes().","Type":"Description","Title":"usb: typec: tcpm: Validate SVID index in svdm_consume_modes()"}]}}}