cve-2024-45010
Vulnerability from cvelistv5
Published
2024-09-11 15:13
Modified
2024-12-19 09:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: only mark 'subflow' endp as available Adding the following warning ... WARN_ON_ONCE(msk->pm.local_addr_used == 0) ... before decrementing the local_addr_used counter helped to find a bug when running the "remove single address" subtest from the mptcp_join.sh selftests. Removing a 'signal' endpoint will trigger the removal of all subflows linked to this endpoint via mptcp_pm_nl_rm_addr_or_subflow() with rm_type == MPTCP_MIB_RMSUBFLOW. This will decrement the local_addr_used counter, which is wrong in this case because this counter is linked to 'subflow' endpoints, and here it is a 'signal' endpoint that is being removed. Now, the counter is decremented, only if the ID is being used outside of mptcp_pm_nl_rm_addr_or_subflow(), only for 'subflow' endpoints, and if the ID is not 0 -- local_addr_used is not taking into account these ones. This marking of the ID as being available, and the decrement is done no matter if a subflow using this ID is currently available, because the subflow could have been closed before.
Impacted products
Vendor Product Version
Linux Linux Version: 5.13
Show details on NVD website


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              "content": {
                "id": "CVE-2024-45010",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-09-29T15:50:56.116338Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/mptcp/pm_netlink.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: only mark \u0027subflow\u0027 endp as available\n\nAdding the following warning ...\n\n  WARN_ON_ONCE(msk-\u003epm.local_addr_used == 0)\n\n... before decrementing the local_addr_used counter helped to find a bug\nwhen running the \"remove single address\" subtest from the mptcp_join.sh\nselftests.\n\nRemoving a \u0027signal\u0027 endpoint will trigger the removal of all subflows\nlinked to this endpoint via mptcp_pm_nl_rm_addr_or_subflow() with\nrm_type == MPTCP_MIB_RMSUBFLOW. This will decrement the local_addr_used\ncounter, which is wrong in this case because this counter is linked to\n\u0027subflow\u0027 endpoints, and here it is a \u0027signal\u0027 endpoint that is being\nremoved.\n\nNow, the counter is decremented, only if the ID is being used outside\nof mptcp_pm_nl_rm_addr_or_subflow(), only for \u0027subflow\u0027 endpoints, and\nif the ID is not 0 -- local_addr_used is not taking into account these\nones. This marking of the ID as being available, and the decrement is\ndone no matter if a subflow using this ID is currently available,\nbecause the subflow could have been closed before."
        }
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      "title": "mptcp: pm: only mark \u0027subflow\u0027 endp as available",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-45010",
    "datePublished": "2024-09-11T15:13:48.358Z",
    "dateReserved": "2024-08-21T05:34:56.681Z",
    "dateUpdated": "2024-12-19T09:20:10.528Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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WARN_ON_ONCE(msk-\u0026gt;pm.local_addr_used == 0) ... antes de decrementar el contador local_addr_used ayud\u00f3 a encontrar un error al ejecutar la subprueba \\\"eliminar una sola direcci\u00f3n\\\" de las autopruebas mptcp_join.sh. Eliminar un extremo \u0027se\u00f1al\u0027 activar\u00e1 la eliminaci\u00f3n de todos los subflujos vinculados a este extremo a trav\u00e9s de mptcp_pm_nl_rm_addr_or_subflow() con rm_type == MPTCP_MIB_RMSUBFLOW. Esto decrementar\u00e1 el contador local_addr_used, lo cual es incorrecto en este caso porque este contador est\u00e1 vinculado a extremos \u0027subflow\u0027, y aqu\u00ed es un extremo \u0027se\u00f1al\u0027 el que se est\u00e1 eliminando. Ahora, el contador se reduce solo si el ID se usa fuera de mptcp_pm_nl_rm_addr_or_subflow(), solo para los puntos finales de \u0027subflujo\u0027 y, si el ID no es 0, local_addr_used no los tiene en cuenta. Esto marca el ID como disponible y la reducci\u00f3n se realiza sin importar si un subflujo que usa este ID est\u00e1 disponible actualmente, porque el subflujo podr\u00eda haberse cerrado antes.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.13\",\"versionEndExcluding\":\"6.1.108\",\"matchCriteriaId\":\"7CC97606-2676-4D1C-8544-CE4E3498BE40\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.48\",\"matchCriteriaId\":\"9DE9201A-CE6B-4726-BABB-8265EA0F8AE4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.7\",\"matchCriteriaId\":\"D2AFDFD1-D95A-4EB7-843B-5E7659518B67\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"8B3CE743-2126-47A3-8B7C-822B502CF119\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4DEB27E7-30AA-45CC-8934-B89263EF3551\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0005AEF-856E-47EB-BFE4-90C46899394D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"39889A68-6D34-47A6-82FC-CD0BF23D6754\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/322ea3778965da72862cca2a0c50253aacf65fe6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/43cf912b0b0fc7b4fd12cbc735d1f5afb8e1322d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7fdc870d08960961408a44c569f20f50940e7d4f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9849cfc67383ceb167155186f8f8fe8a896b60b3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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