{"api_version":"1","generated_at":"2026-08-02T22:20:45+00:00","cve":"CVE-2026-64463","urls":{"html":"https://cve.report/CVE-2026-64463","api":"https://cve.report/api/cve/CVE-2026-64463.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64463","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64463"},"summary":{"title":"usb: typec: tcpci_rt1711h: unregister TCPCI port with devres","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpci_rt1711h: unregister TCPCI port with devres\n\nrt1711h_probe() registers the TCPCI port before requesting the interrupt\nand enabling alert interrupts. If either of those later steps fails, the\nprobe function returns without unregistering the TCPCI port. The explicit\nunregister currently only happens from the remove callback.\n\nRegister a devres action immediately after tcpci_register_port() succeeds,\nso tcpci_unregister_port() runs on later probe failures and on driver\ndetach. Drop the remove callback to avoid unregistering the same port\ntwice.\n\nThis issue was identified during our ongoing static-analysis research while\nreviewing kernel code.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:31","updated_at":"2026-07-27 05:16:52"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"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"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"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"}}],"references":[{"url":"https://git.kernel.org/stable/c/569f18a83eed0b0be4615f0c7bed40fb5c50e2e6","name":"https://git.kernel.org/stable/c/569f18a83eed0b0be4615f0c7bed40fb5c50e2e6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e8da46d99d3710106e7c44db14566bf9b57386b5","name":"https://git.kernel.org/stable/c/e8da46d99d3710106e7c44db14566bf9b57386b5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/94b1abf1af94aa5a355e9f03675e07bccfc41c4b","name":"https://git.kernel.org/stable/c/94b1abf1af94aa5a355e9f03675e07bccfc41c4b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e5406c8fb71cd2f89a46300a746f6e7972e621e8","name":"https://git.kernel.org/stable/c/e5406c8fb71cd2f89a46300a746f6e7972e621e8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ce2e36e8759dfbfe546723810c306f42f484866d","name":"https://git.kernel.org/stable/c/ce2e36e8759dfbfe546723810c306f42f484866d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64463","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64463","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 302c570bf36e997d55ad0d60628a2feec76954a4 ce2e36e8759dfbfe546723810c306f42f484866d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 302c570bf36e997d55ad0d60628a2feec76954a4 94b1abf1af94aa5a355e9f03675e07bccfc41c4b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 302c570bf36e997d55ad0d60628a2feec76954a4 e5406c8fb71cd2f89a46300a746f6e7972e621e8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 302c570bf36e997d55ad0d60628a2feec76954a4 569f18a83eed0b0be4615f0c7bed40fb5c50e2e6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 302c570bf36e997d55ad0d60628a2feec76954a4 e8da46d99d3710106e7c44db14566bf9b57386b5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4309ab96ab744703871e35d829177dd9347bf643 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 895ec8c86e13f85b119c71d5f95491b48867955e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 745dcedb896a740825160228f98dbb5725a49f85 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.19.131 4.20 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.4.50 5.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.7.7 5.8 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.8","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.8 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":"64463","cve":"CVE-2026-64463","epss":"0.001380000","percentile":"0.036230000","score_date":"2026-07-29","updated_at":"2026-07-30 00:09:16"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/typec/tcpm/tcpci_rt1711h.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ce2e36e8759dfbfe546723810c306f42f484866d","status":"affected","version":"302c570bf36e997d55ad0d60628a2feec76954a4","versionType":"git"},{"lessThan":"94b1abf1af94aa5a355e9f03675e07bccfc41c4b","status":"affected","version":"302c570bf36e997d55ad0d60628a2feec76954a4","versionType":"git"},{"lessThan":"e5406c8fb71cd2f89a46300a746f6e7972e621e8","status":"affected","version":"302c570bf36e997d55ad0d60628a2feec76954a4","versionType":"git"},{"lessThan":"569f18a83eed0b0be4615f0c7bed40fb5c50e2e6","status":"affected","version":"302c570bf36e997d55ad0d60628a2feec76954a4","versionType":"git"},{"lessThan":"e8da46d99d3710106e7c44db14566bf9b57386b5","status":"affected","version":"302c570bf36e997d55ad0d60628a2feec76954a4","versionType":"git"},{"status":"affected","version":"4309ab96ab744703871e35d829177dd9347bf643","versionType":"git"},{"status":"affected","version":"895ec8c86e13f85b119c71d5f95491b48867955e","versionType":"git"},{"status":"affected","version":"745dcedb896a740825160228f98dbb5725a49f85","versionType":"git"},{"lessThan":"4.20","status":"affected","version":"4.19.131","versionType":"semver"},{"lessThan":"5.5","status":"affected","version":"5.4.50","versionType":"semver"},{"lessThan":"5.8","status":"affected","version":"5.7.7","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/typec/tcpm/tcpci_rt1711h.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.8"},{"lessThan":"5.8","status":"unaffected","version":"0","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":"6.6.145","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc3","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.131","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.50","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpci_rt1711h: unregister TCPCI port with devres\n\nrt1711h_probe() registers the TCPCI port before requesting the interrupt\nand enabling alert interrupts. If either of those later steps fails, the\nprobe function returns without unregistering the TCPCI port. The explicit\nunregister currently only happens from the remove callback.\n\nRegister a devres action immediately after tcpci_register_port() succeeds,\nso tcpci_unregister_port() runs on later probe failures and on driver\ndetach. Drop the remove callback to avoid unregistering the same port\ntwice.\n\nThis issue was identified during our ongoing static-analysis research while\nreviewing kernel code."}],"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":"2026-07-27T05:01:18.146Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/ce2e36e8759dfbfe546723810c306f42f484866d"},{"url":"https://git.kernel.org/stable/c/94b1abf1af94aa5a355e9f03675e07bccfc41c4b"},{"url":"https://git.kernel.org/stable/c/e5406c8fb71cd2f89a46300a746f6e7972e621e8"},{"url":"https://git.kernel.org/stable/c/569f18a83eed0b0be4615f0c7bed40fb5c50e2e6"},{"url":"https://git.kernel.org/stable/c/e8da46d99d3710106e7c44db14566bf9b57386b5"}],"title":"usb: typec: tcpci_rt1711h: unregister TCPCI port with devres","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64463","datePublished":"2026-07-25T08:51:29.720Z","dateReserved":"2026-07-19T15:36:31.789Z","dateUpdated":"2026-07-27T05:01:18.146Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:31","lastModifiedDate":"2026-07-27 05:16:52","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":"64463","Ordinal":"1","Title":"usb: typec: tcpci_rt1711h: unregister TCPCI port with devres","CVE":"CVE-2026-64463","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64463","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpci_rt1711h: unregister TCPCI port with devres\n\nrt1711h_probe() registers the TCPCI port before requesting the interrupt\nand enabling alert interrupts. If either of those later steps fails, the\nprobe function returns without unregistering the TCPCI port. The explicit\nunregister currently only happens from the remove callback.\n\nRegister a devres action immediately after tcpci_register_port() succeeds,\nso tcpci_unregister_port() runs on later probe failures and on driver\ndetach. Drop the remove callback to avoid unregistering the same port\ntwice.\n\nThis issue was identified during our ongoing static-analysis research while\nreviewing kernel code.","Type":"Description","Title":"usb: typec: tcpci_rt1711h: unregister TCPCI port with devres"}]}}}