cve-2024-43862
Vulnerability from cvelistv5
Published
2024-08-20 23:45
Modified
2024-12-19 09:17
Severity ?
Summary
net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c4d6a347ba7babdf9d90a0eb24048c266cae0532Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f223d2b4acb7a45a6e0581cb380e1af1a6dc7ab9Patch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
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            "other": {
              "content": {
                "id": "CVE-2024-43862",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:06:49.152851Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:33:19.773Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wan/fsl_qmc_hdlc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "vendor": "Linux",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex\n\nThe carrier_lock spinlock protects the carrier detection. While it is\nheld, framer_get_status() is called which in turn takes a mutex.\nThis is not correct and can lead to a deadlock.\n\nA run with PROVE_LOCKING enabled detected the issue:\n  [ BUG: Invalid wait context ]\n  ...\n  c204ddbc (\u0026framer-\u003emutex){+.+.}-{3:3}, at: framer_get_status+0x40/0x78\n  other info that might help us debug this:\n  context-{4:4}\n  2 locks held by ifconfig/146:\n  #0: c0926a38 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x12c/0x664\n  #1: c2006a40 (\u0026qmc_hdlc-\u003ecarrier_lock){....}-{2:2}, at: qmc_hdlc_framer_set_carrier+0x30/0x98\n\nAvoid the spinlock usage and convert carrier_lock to a mutex."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:17:21.595Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/c4d6a347ba7babdf9d90a0eb24048c266cae0532"
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      ],
      "title": "net: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-43862",
    "datePublished": "2024-08-20T23:45:26.643Z",
    "dateReserved": "2024-08-17T09:11:59.279Z",
    "dateUpdated": "2024-12-19T09:17:21.595Z",
    "state": "PUBLISHED"
  },
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  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-43862\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-21T00:15:04.773\",\"lastModified\":\"2024-09-03T13:44:24.033\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: wan: fsl_qmc_hdlc: Convert carrier_lock spinlock to a mutex\\n\\nThe carrier_lock spinlock protects the carrier detection. While it is\\nheld, framer_get_status() is called which in turn takes a mutex.\\nThis is not correct and can lead to a deadlock.\\n\\nA run with PROVE_LOCKING enabled detected the issue:\\n  [ BUG: Invalid wait context ]\\n  ...\\n  c204ddbc (\u0026framer-\u003emutex){+.+.}-{3:3}, at: framer_get_status+0x40/0x78\\n  other info that might help us debug this:\\n  context-{4:4}\\n  2 locks held by ifconfig/146:\\n  #0: c0926a38 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x12c/0x664\\n  #1: c2006a40 (\u0026qmc_hdlc-\u003ecarrier_lock){....}-{2:2}, at: qmc_hdlc_framer_set_carrier+0x30/0x98\\n\\nAvoid the spinlock usage and convert carrier_lock to a mutex.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: wan: fsl_qmc_hdlc: convierte el spinlock de Carrier_lock en un mutex El spinlock de Carrier_lock protege la detecci\u00f3n del operador. Mientras se mantiene, se llama a framer_get_status(), que a su vez toma un mutex. Esto no es correcto y puede llevar a un punto muerto. Una ejecuci\u00f3n con PROVE_LOCKING habilitado detect\u00f3 el problema: [ERROR: Contexto de espera no v\u00e1lido] ... c204ddbc (\u0026amp;framer-\u0026gt;mutex){+.+.}-{3:3}, en: framer_get_status+0x40/0x78 otra informaci\u00f3n que podr\u00eda ay\u00fadenos a depurar esto: contexto-{4:4} 2 bloqueos retenidos por ifconfig/146: #0: c0926a38 (rtnl_mutex){+.+.}-{3:3}, en: devinet_ioctl+0x12c/0x664 #1: c2006a40 (\u0026amp;qmc_hdlc-\u0026gt;carrier_lock){....}-{2:2}, en: qmc_hdlc_framer_set_carrier+0x30/0x98 Evite el uso de spinlock y convierta carrier_lock en un mutex.\"}],\"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\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-667\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.9\",\"versionEndExcluding\":\"6.10.4\",\"matchCriteriaId\":\"0CB5CFBB-1C1A-4E39-8C2E-B31A756ECFD9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"8B3CE743-2126-47A3-8B7C-822B502CF119\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/c4d6a347ba7babdf9d90a0eb24048c266cae0532\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f223d2b4acb7a45a6e0581cb380e1af1a6dc7ab9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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