CVE-2022-49308 (GCVE-0-2022-49308)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:10 – Updated: 2026-05-11 18:57
VLAI?
Title
extcon: Modify extcon device to be created after driver data is set
Summary
In the Linux kernel, the following vulnerability has been resolved: extcon: Modify extcon device to be created after driver data is set Currently, someone can invoke the sysfs such as state_show() intermittently before dev_set_drvdata() is done. And it can be a cause of kernel Oops because of edev is Null at that time. So modified the driver registration to after setting drviver data. - Oops's backtrace. Backtrace: [<c067865c>] (state_show) from [<c05222e8>] (dev_attr_show) [<c05222c0>] (dev_attr_show) from [<c02c66e0>] (sysfs_kf_seq_show) [<c02c6648>] (sysfs_kf_seq_show) from [<c02c496c>] (kernfs_seq_show) [<c02c4938>] (kernfs_seq_show) from [<c025e2a0>] (seq_read) [<c025e11c>] (seq_read) from [<c02c50a0>] (kernfs_fop_read) [<c02c5064>] (kernfs_fop_read) from [<c0231cac>] (__vfs_read) [<c0231c5c>] (__vfs_read) from [<c0231ee0>] (vfs_read) [<c0231e34>] (vfs_read) from [<c0232464>] (ksys_read) [<c02323f0>] (ksys_read) from [<c02324fc>] (sys_read) [<c02324e4>] (sys_read) from [<c00091d0>] (__sys_trace_return)
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: de55d8716ac50a356cea736c29bb7db5ac3d0190 , < 6e721f3ad0535b24f19a62420f4da95212cf069c (git)
Affected: de55d8716ac50a356cea736c29bb7db5ac3d0190 , < cb81ea998c461868d1168411a867d8ffee12f23f (git)
Affected: de55d8716ac50a356cea736c29bb7db5ac3d0190 , < d472c78cc82999d07bd09193a6718016ce9cd386 (git)
Affected: de55d8716ac50a356cea736c29bb7db5ac3d0190 , < abf3b222614f49f98e606fccdd269161c0d70204 (git)
Affected: de55d8716ac50a356cea736c29bb7db5ac3d0190 , < 368e68ad6da4317fc4170e8d92b51c13d1bfe7a7 (git)
Affected: de55d8716ac50a356cea736c29bb7db5ac3d0190 , < 35ff1ac55d301efb3f467cf5426faaeb3452994b (git)
Affected: de55d8716ac50a356cea736c29bb7db5ac3d0190 , < 033ec4e7e59ae5e1ef1e8c10bc6552926044ed1c (git)
Affected: de55d8716ac50a356cea736c29bb7db5ac3d0190 , < 5dcc2afe716d69f5112ce035cb14f007461ff189 (git)
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Linux Linux Affected: 3.5
Unaffected: 0 , < 3.5 (semver)
Unaffected: 4.14.283 , ≤ 4.14.* (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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          "programFiles": [
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nextcon: Modify extcon device to be created after driver data is set\n\nCurrently, someone can invoke the sysfs such as state_show()\nintermittently before dev_set_drvdata() is done.\nAnd it can be a cause of kernel Oops because of edev is Null at that time.\nSo modified the driver registration to after setting drviver data.\n\n- Oops\u0027s backtrace.\n\nBacktrace:\n[\u003cc067865c\u003e] (state_show) from [\u003cc05222e8\u003e] (dev_attr_show)\n[\u003cc05222c0\u003e] (dev_attr_show) from [\u003cc02c66e0\u003e] (sysfs_kf_seq_show)\n[\u003cc02c6648\u003e] (sysfs_kf_seq_show) from [\u003cc02c496c\u003e] (kernfs_seq_show)\n[\u003cc02c4938\u003e] (kernfs_seq_show) from [\u003cc025e2a0\u003e] (seq_read)\n[\u003cc025e11c\u003e] (seq_read) from [\u003cc02c50a0\u003e] (kernfs_fop_read)\n[\u003cc02c5064\u003e] (kernfs_fop_read) from [\u003cc0231cac\u003e] (__vfs_read)\n[\u003cc0231c5c\u003e] (__vfs_read) from [\u003cc0231ee0\u003e] (vfs_read)\n[\u003cc0231e34\u003e] (vfs_read) from [\u003cc0232464\u003e] (ksys_read)\n[\u003cc02323f0\u003e] (ksys_read) from [\u003cc02324fc\u003e] (sys_read)\n[\u003cc02324e4\u003e] (sys_read) from [\u003cc00091d0\u003e] (__sys_trace_return)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:57:10.523Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6e721f3ad0535b24f19a62420f4da95212cf069c"
        },
        {
          "url": "https://git.kernel.org/stable/c/cb81ea998c461868d1168411a867d8ffee12f23f"
        },
        {
          "url": "https://git.kernel.org/stable/c/d472c78cc82999d07bd09193a6718016ce9cd386"
        },
        {
          "url": "https://git.kernel.org/stable/c/abf3b222614f49f98e606fccdd269161c0d70204"
        },
        {
          "url": "https://git.kernel.org/stable/c/368e68ad6da4317fc4170e8d92b51c13d1bfe7a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/35ff1ac55d301efb3f467cf5426faaeb3452994b"
        },
        {
          "url": "https://git.kernel.org/stable/c/033ec4e7e59ae5e1ef1e8c10bc6552926044ed1c"
        },
        {
          "url": "https://git.kernel.org/stable/c/5dcc2afe716d69f5112ce035cb14f007461ff189"
        }
      ],
      "title": "extcon: Modify extcon device to be created after driver data is set",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49308",
    "datePublished": "2025-02-26T02:10:39.648Z",
    "dateReserved": "2025-02-26T02:08:31.536Z",
    "dateUpdated": "2026-05-11T18:57:10.523Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "cve": "CVE-2022-49308",
      "date": "2026-05-20",
      "epss": "0.0001",
      "percentile": "0.01056"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49308\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:07.607\",\"lastModified\":\"2025-10-21T12:19:21.033\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nextcon: Modify extcon device to be created after driver data is set\\n\\nCurrently, someone can invoke the sysfs such as state_show()\\nintermittently before dev_set_drvdata() is done.\\nAnd it can be a cause of kernel Oops because of edev is Null at that time.\\nSo modified the driver registration to after setting drviver data.\\n\\n- Oops\u0027s backtrace.\\n\\nBacktrace:\\n[\u003cc067865c\u003e] (state_show) from [\u003cc05222e8\u003e] (dev_attr_show)\\n[\u003cc05222c0\u003e] (dev_attr_show) from [\u003cc02c66e0\u003e] (sysfs_kf_seq_show)\\n[\u003cc02c6648\u003e] (sysfs_kf_seq_show) from [\u003cc02c496c\u003e] (kernfs_seq_show)\\n[\u003cc02c4938\u003e] (kernfs_seq_show) from [\u003cc025e2a0\u003e] (seq_read)\\n[\u003cc025e11c\u003e] (seq_read) from [\u003cc02c50a0\u003e] (kernfs_fop_read)\\n[\u003cc02c5064\u003e] (kernfs_fop_read) from [\u003cc0231cac\u003e] (__vfs_read)\\n[\u003cc0231c5c\u003e] (__vfs_read) from [\u003cc0231ee0\u003e] (vfs_read)\\n[\u003cc0231e34\u003e] (vfs_read) from [\u003cc0232464\u003e] (ksys_read)\\n[\u003cc02323f0\u003e] (ksys_read) from [\u003cc02324fc\u003e] (sys_read)\\n[\u003cc02324e4\u003e] (sys_read) from [\u003cc00091d0\u003e] (__sys_trace_return)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: extcon: Modificar el dispositivo extcon para que se cree despu\u00e9s de que se configuren los datos del controlador. Actualmente, alguien puede invocar el sysfs como state_show() de forma intermitente antes de que se realice dev_set_drvdata(). Y puede ser una causa de errores del kernel debido a que edev es Null en ese momento. Por lo tanto, se modific\u00f3 el registro del controlador despu\u00e9s de configurar los datos del controlador. - Ups, el backtrace. Rastreo inverso: [] (mostrar estado) desde [] (mostrar atributo de desarrollo) [] (mostrar atributo de desarrollo) desde [] (mostrar secuencia de sysfs_kf_seq) [] (mostrar secuencia de sysfs_kf_seq) desde [] (mostrar secuencia de kernfs) [] (mostrar secuencia de kernfs) desde [] (leer secuencia) [] (leer secuencia) desde [] (leer secuencia de kernfs_fop) [] (kernfs_fop_read) desde [] (__vfs_read) [] (__vfs_read) desde [] (vfs_read) [] (vfs_read) desde [] (ksys_read) [] (ksys_read) desde [] (sys_read) [] (sys_read) desde [] (__sys_trace_return)\"}],\"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:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.14.283\",\"matchCriteriaId\":\"42074657-A7B6-4740-88B7-67B440018C1C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.247\",\"matchCriteriaId\":\"B8CFA0F4-2D75-41F4-9753-87944A08B53B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.198\",\"matchCriteriaId\":\"3EC49633-14DE-4EBD-BB80-76AE2E3EABB9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.122\",\"matchCriteriaId\":\"1B42AA01-44D8-4572-95E6-FF8E374CF9C5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.47\",\"matchCriteriaId\":\"FC042EE3-4864-4325-BE0B-4BCDBF11AA61\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.17.15\",\"matchCriteriaId\":\"53E7AA2E-2FB4-45CA-A22B-08B4EDBB51AD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.18\",\"versionEndExcluding\":\"5.18.4\",\"matchCriteriaId\":\"FA6D643C-6D6A-4821-8A8D-B5776B8F0103\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/033ec4e7e59ae5e1ef1e8c10bc6552926044ed1c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/35ff1ac55d301efb3f467cf5426faaeb3452994b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/368e68ad6da4317fc4170e8d92b51c13d1bfe7a7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5dcc2afe716d69f5112ce035cb14f007461ff189\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6e721f3ad0535b24f19a62420f4da95212cf069c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/abf3b222614f49f98e606fccdd269161c0d70204\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cb81ea998c461868d1168411a867d8ffee12f23f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d472c78cc82999d07bd09193a6718016ce9cd386\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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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.

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  • 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.
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  • 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.



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