{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89470", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.710Z", "datePublished": "2026-09-11T19:43:29.206Z", "dateUpdated": "2026-09-11T19:43:29.206Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-11T19:43:29.206Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/power/supply/cros_usbpd-charger.c"], "versions": [{"version": "3af15cfacd1eef7f223802d49a88cae23c509183", "lessThan": "fd5f289cca04ad869b34fc9ccb647670bfdb60ac", "status": "affected", "versionType": "git"}, {"version": "3af15cfacd1eef7f223802d49a88cae23c509183", "lessThan": "4b1f2be1e1b74a50386ba718de3d62bfcf5ee701", "status": "affected", "versionType": "git"}, {"version": "3af15cfacd1eef7f223802d49a88cae23c509183", "lessThan": "304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60", "status": "affected", "versionType": "git"}, {"version": "3af15cfacd1eef7f223802d49a88cae23c509183", "lessThan": "657cd3a42e937276262c0a8ae6b01a87004309de", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/power/supply/cros_usbpd-charger.c"], "versions": [{"version": "4.20", "status": "affected"}, {"version": "0", "lessThan": "4.20", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "7.3-rc1"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-89470", "lastModified": "2026-09-11T20:19:28.140", "metrics": {}, "published": "2026-09-11T20:19:28.140", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4b1f2be1e1b74a50386ba718de3d62bfcf5ee701"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/657cd3a42e937276262c0a8ae6b01a87004309de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fd5f289cca04ad869b34fc9ccb647670bfdb60ac"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: Memory corruption in USB power delivery driver", "id": "2532525", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532525"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.4", "cvss3_scoring_vector": "CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in the Linux kernel's `cros_usbpd-charger` driver. This driver, which manages USB power delivery, incorrectly processes port count information from an embedded controller. A malicious embedded controller could provide an exaggerated port count, leading to an out-of-bounds write and subsequent memory corruption. This vulnerability could allow an attacker to cause system instability or potentially gain unauthorized control of the system."], "name": "CVE-2026-89470", "public_date": "2026-09-11T19:43:29Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89470\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89470\nhttps://git.kernel.org/stable/c/304a29ac55ba3ee6eceaf7d83d09cd9709f3bf60\nhttps://git.kernel.org/stable/c/4b1f2be1e1b74a50386ba718de3d62bfcf5ee701\nhttps://git.kernel.org/stable/c/657cd3a42e937276262c0a8ae6b01a87004309de\nhttps://git.kernel.org/stable/c/fd5f289cca04ad869b34fc9ccb647670bfdb60ac"], "threat_severity": "Moderate"}

{}