{"api_version":"1","generated_at":"2026-09-12T10:56:37+00:00","cve":"CVE-2026-89470","urls":{"html":"https://cve.report/CVE-2026-89470","api":"https://cve.report/api/cve/CVE-2026-89470.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89470","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89470"},"summary":{"title":"power: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PORTS","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PORTS\n\nCurrently the cros_usbpd-charger driver probe iterates based on raw\ncharger port count returned by the embedded controller. The only check\nis against the number of USB PD ports which the embedded controller\nalso defines. A malicious embedded controller could return an inaccurate\nport count (up to 255) resulting in an out of bounds write and\nsubsequent memory corruption.\n\nUpdate helper functions in cros_usbpd-charger to limit port counts to\nEC_USB_PD_MAX_PORTS.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-11 20:19:28","updated_at":"2026-09-11 20:19:28"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60","name":"https://git.kernel.org/stable/c/304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fd5f289cca04ad869b34fc9ccb647670bfdb60ac","name":"https://git.kernel.org/stable/c/fd5f289cca04ad869b34fc9ccb647670bfdb60ac","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4b1f2be1e1b74a50386ba718de3d62bfcf5ee701","name":"https://git.kernel.org/stable/c/4b1f2be1e1b74a50386ba718de3d62bfcf5ee701","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/657cd3a42e937276262c0a8ae6b01a87004309de","name":"https://git.kernel.org/stable/c/657cd3a42e937276262c0a8ae6b01a87004309de","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89470","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89470","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3af15cfacd1eef7f223802d49a88cae23c509183 fd5f289cca04ad869b34fc9ccb647670bfdb60ac git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3af15cfacd1eef7f223802d49a88cae23c509183 4b1f2be1e1b74a50386ba718de3d62bfcf5ee701 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3af15cfacd1eef7f223802d49a88cae23c509183 304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3af15cfacd1eef7f223802d49a88cae23c509183 657cd3a42e937276262c0a8ae6b01a87004309de git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.20","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.20 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.109 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.50 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.4 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/power/supply/cros_usbpd-charger.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"fd5f289cca04ad869b34fc9ccb647670bfdb60ac","status":"affected","version":"3af15cfacd1eef7f223802d49a88cae23c509183","versionType":"git"},{"lessThan":"4b1f2be1e1b74a50386ba718de3d62bfcf5ee701","status":"affected","version":"3af15cfacd1eef7f223802d49a88cae23c509183","versionType":"git"},{"lessThan":"304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60","status":"affected","version":"3af15cfacd1eef7f223802d49a88cae23c509183","versionType":"git"},{"lessThan":"657cd3a42e937276262c0a8ae6b01a87004309de","status":"affected","version":"3af15cfacd1eef7f223802d49a88cae23c509183","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/power/supply/cros_usbpd-charger.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.109","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.50","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.109","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.50","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.4","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"4.20","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PORTS\n\nCurrently the cros_usbpd-charger driver probe iterates based on raw\ncharger port count returned by the embedded controller. The only check\nis against the number of USB PD ports which the embedded controller\nalso defines. A malicious embedded controller could return an inaccurate\nport count (up to 255) resulting in an out of bounds write and\nsubsequent memory corruption.\n\nUpdate helper functions in cros_usbpd-charger to limit port counts to\nEC_USB_PD_MAX_PORTS."}],"providerMetadata":{"dateUpdated":"2026-09-11T19:43:29.206Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/fd5f289cca04ad869b34fc9ccb647670bfdb60ac"},{"url":"https://git.kernel.org/stable/c/4b1f2be1e1b74a50386ba718de3d62bfcf5ee701"},{"url":"https://git.kernel.org/stable/c/304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60"},{"url":"https://git.kernel.org/stable/c/657cd3a42e937276262c0a8ae6b01a87004309de"}],"title":"power: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PORTS","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89470","datePublished":"2026-09-11T19:43:29.206Z","dateReserved":"2026-09-11T19:38:34.710Z","dateUpdated":"2026-09-11T19:43:29.206Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-11 20:19:28","lastModifiedDate":"2026-09-11 20:19:28","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89470","Ordinal":"1","Title":"power: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PO","CVE":"CVE-2026-89470","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89470","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PORTS\n\nCurrently the cros_usbpd-charger driver probe iterates based on raw\ncharger port count returned by the embedded controller. The only check\nis against the number of USB PD ports which the embedded controller\nalso defines. A malicious embedded controller could return an inaccurate\nport count (up to 255) resulting in an out of bounds write and\nsubsequent memory corruption.\n\nUpdate helper functions in cros_usbpd-charger to limit port counts to\nEC_USB_PD_MAX_PORTS.","Type":"Description","Title":"power: supply: cros_usbpd: Limit port counts to EC_USB_PD_MAX_PO"}]}}}