CVE-2024-36893

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Given that port->partner validity is\nnot checked, this results in the following crash:\n\nUnable to handle kernel NULL pointer dereference at virtual address xx\n pc : run_state_machine+0x1bc8/0x1c08\n lr : run_state_machine+0x1b90/0x1c08\n..\n Call trace:\n run_state_machine+0x1bc8/0x1c08\n tcpm_state_machine_work+0x94/0xe4\n kthread_worker_fn+0x118/0x328\n kthread+0x1d0/0x23c\n ret_from_fork+0x10/0x20\n\nTo prevent the crash, check for port->partner validity before\nderefencing it in all the call sites."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/typec/tcpm/tcpm.c"], "versions": [{"version": "31220bd89c22a18478f52fcd8069e8e2adb8f4f2", "lessThan": "2a07e6f0ad8a6e504a3912cfe8dc859b7d0740a5", "status": "affected", "versionType": "git"}, {"version": "9b7cd3fe01f0d03cf5820b351a6be2a6e0a6da6f", "lessThan": 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In the event of failure, port->partner is set\nto the error value or NULL. Given that port->partner validity is\nnot checked, this results in the following crash:\n\nUnable to handle kernel NULL pointer dereference at virtual address xx\n pc : run_state_machine+0x1bc8/0x1c08\n lr : run_state_machine+0x1b90/0x1c08\n..\n Call trace:\n run_state_machine+0x1bc8/0x1c08\n tcpm_state_machine_work+0x94/0xe4\n kthread_worker_fn+0x118/0x328\n kthread+0x1d0/0x23c\n ret_from_fork+0x10/0x20\n\nTo prevent the crash, check for port->partner validity before\nderefencing it in all the call sites."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.168", "versionStartIncluding": "5.15.132"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.91", "versionStartIncluding": "6.1.53"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.31", "versionStartIncluding": "6.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.8.10", "versionStartIncluding": "6.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.9", "versionStartIncluding": "6.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "6.4.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "6.5.3"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:47:17.169Z"}}}, "cveMetadata": {"cveId": "CVE-2024-36893", "state": "PUBLISHED", "dateUpdated": "2026-05-23T15:47:17.169Z", "dateReserved": "2024-05-30T15:25:07.065Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-30T15:28:59.113Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"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": "2a07e6f0ad8a6e504a3912cfe8dc859b7d0740a5", "status": "affected", "version": "31220bd89c22a18478f52fcd8069e8e2adb8f4f2", "versionType": "git"}, {"lessThan": "d56d2ca03cc22123fd7626967d096d8661324e57", "status": "affected", "version": "9b7cd3fe01f0d03cf5820b351a6be2a6e0a6da6f", "versionType": "git"}, {"lessThan": "789326cafbd1f67f424436b6bc8bdb887a364637", "status": "affected", "version": "c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416", "versionType": "git"}, {"lessThan": "fc2b655cb6dd2b381f1f284989721002e39b6b77", "status": "affected", "version": "c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416", "versionType": "git"}, {"lessThan": "ae11f04b452b5205536e1c02d31f8045eba249dd", "status": "affected", "version": "c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416", "versionType": "git"}, {"status": "affected", "version": "2897b36d2482b84f35e659989d5cb4501fb31ccd", "versionType": "git"}, {"status": "affected", "version": "cbcf107780aecf51aba68488044a416d95060b6d", "versionType": "git"}, {"lessThan": "5.15.168", "status": "affected", "version": "5.15.132", "versionType": "semver"}, {"lessThan": "6.1.91", "status": "affected", "version": "6.1.53", "versionType": "semver"}, {"lessThan": "6.5", "status": "affected", "version": "6.4.16", "versionType": "semver"}, {"lessThan": "6.6", "status": "affected", "version": "6.5.3", "versionType": "semver"}]}, {"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": "6.6"}, {"lessThan": "6.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.168", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.91", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.31", "versionType": "semver"}, {"lessThanOrEqual": "6.8.*", "status": "unaffected", "version": "6.8.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.9", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "C7F044DD-06F0-44B2-8185-DCA23913A970", "versionEndExcluding": "6.1.91", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CDDB1F69-36AC-41C1-9192-E7CCEF5FFC00", "versionEndExcluding": "6.6.31", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6A6B920C-8D8F-4130-86B4-AD334F4CF2E3", "versionEndExcluding": "6.8.10", "versionStartIncluding": "6.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpm: Check for port partner validity before consuming it\n\ntypec_register_partner() does not guarantee partner registration\nto always succeed. In the event of failure, port->partner is set\nto the error value or NULL. Given that port->partner validity is\nnot checked, this results in the following crash:\n\nUnable to handle kernel NULL pointer dereference at virtual address xx\n pc : run_state_machine+0x1bc8/0x1c08\n lr : run_state_machine+0x1b90/0x1c08\n..\n Call trace:\n run_state_machine+0x1bc8/0x1c08\n tcpm_state_machine_work+0x94/0xe4\n kthread_worker_fn+0x118/0x328\n kthread+0x1d0/0x23c\n ret_from_fork+0x10/0x20\n\nTo prevent the crash, check for port->partner validity before\nderefencing it in all the call sites."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: typec: tcpm: verifique la validez del socio del puerto antes de consumirlo. typec_register_partner() no garantiza que el registro del socio sea siempre exitoso. En caso de error, puerto->socio se establece en el valor de error o NULL. Dado que no se verifica la validez del puerto->partner, esto produce el siguiente bloqueo: No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual xx pc: run_state_machine+0x1bc8/0x1c08 lr: run_state_machine+0x1b90/0x1c08 .. Seguimiento de llamadas: run_state_machine+ 0x1bc8/0x1c08 tcpm_state_machine_work+0x94/0xe4 kthread_worker_fn+0x118/0x328 kthread+0x1d0/0x23c ret_from_fork+0x10/0x20 Para evitar el bloqueo, verifique la validez del puerto->partner antes de eliminar la barrera en todos los sitios de llamadas."}], "id": "CVE-2024-36893", "lastModified": "2026-06-17T07:37:17.510", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-36893", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-05-30T18:53:53.633071Z", "version": "2.0.3"}}]}, "published": "2024-05-30T16:15:12.773", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2a07e6f0ad8a6e504a3912cfe8dc859b7d0740a5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/789326cafbd1f67f424436b6bc8bdb887a364637"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ae11f04b452b5205536e1c02d31f8045eba249dd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d56d2ca03cc22123fd7626967d096d8661324e57"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fc2b655cb6dd2b381f1f284989721002e39b6b77"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/789326cafbd1f67f424436b6bc8bdb887a364637"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ae11f04b452b5205536e1c02d31f8045eba249dd"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d56d2ca03cc22123fd7626967d096d8661324e57"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fc2b655cb6dd2b381f1f284989721002e39b6b77"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: usb: typec: tcpm: Check for port partner validity before consuming it", "id": "2284563", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2284563"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nusb: typec: tcpm: Check for port partner validity before consuming it\ntypec_register_partner() does not guarantee partner registration\nto always succeed. In the event of failure, port->partner is set\nto the error value or NULL. Given that port->partner validity is\nnot checked, this results in the following crash:\nUnable to handle kernel NULL pointer dereference at virtual address xx\npc : run_state_machine+0x1bc8/0x1c08\nlr : run_state_machine+0x1b90/0x1c08\n..\nCall trace:\nrun_state_machine+0x1bc8/0x1c08\ntcpm_state_machine_work+0x94/0xe4\nkthread_worker_fn+0x118/0x328\nkthread+0x1d0/0x23c\nret_from_fork+0x10/0x20\nTo prevent the crash, check for port->partner validity before\nderefencing it in all the call sites."], "name": "CVE-2024-36893", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-36893\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-36893\nhttps://lore.kernel.org/linux-cve-announce/2024053034-CVE-2024-36893-476e@gregkh/T"], "threat_severity": "Low"}

{}