CVE-2024-36893 (GCVE-0-2024-36893)

Vulnerability from cvelistv5 – Published: 2024-05-30 15:28 – Updated: 2026-05-23 15:47
VLAI
Title
usb: typec: tcpm: Check for port partner validity before consuming it
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: Check for port partner validity before consuming it typec_register_partner() does not guarantee partner registration to always succeed. In the event of failure, port->partner is set to the error value or NULL. Given that port->partner validity is not checked, this results in the following crash: Unable to handle kernel NULL pointer dereference at virtual address xx pc : run_state_machine+0x1bc8/0x1c08 lr : run_state_machine+0x1b90/0x1c08 .. Call trace: run_state_machine+0x1bc8/0x1c08 tcpm_state_machine_work+0x94/0xe4 kthread_worker_fn+0x118/0x328 kthread+0x1d0/0x23c ret_from_fork+0x10/0x20 To prevent the crash, check for port->partner validity before derefencing it in all the call sites.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 31220bd89c22a18478f52fcd8069e8e2adb8f4f2 , < 2a07e6f0ad8a6e504a3912cfe8dc859b7d0740a5 (git)
Affected: 9b7cd3fe01f0d03cf5820b351a6be2a6e0a6da6f , < d56d2ca03cc22123fd7626967d096d8661324e57 (git)
Affected: c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416 , < 789326cafbd1f67f424436b6bc8bdb887a364637 (git)
Affected: c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416 , < fc2b655cb6dd2b381f1f284989721002e39b6b77 (git)
Affected: c97cd0b4b54eb42aed7f6c3c295a2d137f6d2416 , < ae11f04b452b5205536e1c02d31f8045eba249dd (git)
Affected: 2897b36d2482b84f35e659989d5cb4501fb31ccd (git)
Affected: cbcf107780aecf51aba68488044a416d95060b6d (git)
Affected: 5.15.132 , < 5.15.168 (semver)
Affected: 6.1.53 , < 6.1.91 (semver)
Affected: 6.4.16 , < 6.5 (semver)
Affected: 6.5.3 , < 6.6 (semver)
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Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 5.15.168 , ≤ 5.15.* (semver)
Unaffected: 6.1.91 , ≤ 6.1.* (semver)
Unaffected: 6.6.31 , ≤ 6.6.* (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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Given that port-\u003epartner 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-\u003epartner 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-\u0026gt;socio se establece en el valor de error o NULL. Dado que no se verifica la validez del puerto-\u0026gt;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-\u0026gt;partner antes de eliminar la barrera en todos los sitios de 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:31:37+00:00",
      "cve": "CVE-2024-36893",
      "id": "CVE-2024-36893",
      "initial_release_date": "2024-05-30T00:00:00+00:00",
      "product_status:known_affected": "108",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: usb: typec: tcpm: Check for port partner validity before consuming it",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-36893.json",
      "version": "3"
    },
    "vulnrichment": {
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In the event of failure, port-\u003epartner is set\\nto the error value or NULL. Given that port-\u003epartner 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-\u003epartner 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\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.