FKIE_CVE-2022-48942

Vulnerability from fkie_nvd - Published: 2024-08-22 04:15 - Updated: 2024-08-22 18:25
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: hwmon: Handle failure to register sensor with thermal zone correctly If an attempt is made to a sensor with a thermal zone and it fails, the call to devm_thermal_zone_of_sensor_register() may return -ENODEV. This may result in crashes similar to the following. Unable to handle kernel NULL pointer dereference at virtual address 00000000000003cd ... Internal error: Oops: 96000021 [#1] PREEMPT SMP ... pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : mutex_lock+0x18/0x60 lr : thermal_zone_device_update+0x40/0x2e0 sp : ffff800014c4fc60 x29: ffff800014c4fc60 x28: ffff365ee3f6e000 x27: ffffdde218426790 x26: ffff365ee3f6e000 x25: 0000000000000000 x24: ffff365ee3f6e000 x23: ffffdde218426870 x22: ffff365ee3f6e000 x21: 00000000000003cd x20: ffff365ee8bf3308 x19: ffffffffffffffed x18: 0000000000000000 x17: ffffdde21842689c x16: ffffdde1cb7a0b7c x15: 0000000000000040 x14: ffffdde21a4889a0 x13: 0000000000000228 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000001120000 x7 : 0000000000000001 x6 : 0000000000000000 x5 : 0068000878e20f07 x4 : 0000000000000000 x3 : 00000000000003cd x2 : ffff365ee3f6e000 x1 : 0000000000000000 x0 : 00000000000003cd Call trace: mutex_lock+0x18/0x60 hwmon_notify_event+0xfc/0x110 0xffffdde1cb7a0a90 0xffffdde1cb7a0b7c irq_thread_fn+0x2c/0xa0 irq_thread+0x134/0x240 kthread+0x178/0x190 ret_from_fork+0x10/0x20 Code: d503201f d503201f d2800001 aa0103e4 (c8e47c02) Jon Hunter reports that the exact call sequence is: hwmon_notify_event() --> hwmon_thermal_notify() --> thermal_zone_device_update() --> update_temperature() --> mutex_lock() The hwmon core needs to handle all errors returned from calls to devm_thermal_zone_of_sensor_register(). If the call fails with -ENODEV, report that the sensor was not attached to a thermal zone but continue to register the hwmon device.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b5f517cca36292076d9e38fa6e33a257703e62ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7efe8499cb90651c540753f4269d2d43ede14223Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a1969e14ad93663f9a3ed02ccc2138da9956a0ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/962b2a3188bfa5388756ffbc47dfa5ff59cb8011Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D8C41B9F-E0FA-4DF6-A35F-596B525A72A6",
              "versionEndExcluding": "5.10.103",
              "versionStartIncluding": "5.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9AB342AE-A62E-4947-A6EA-511453062B2B",
              "versionEndExcluding": "5.15.26",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "5.16.12",
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              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: Handle failure to register sensor with thermal zone correctly\n\nIf an attempt is made to a sensor with a thermal zone and it fails,\nthe call to devm_thermal_zone_of_sensor_register() may return -ENODEV.\nThis may result in crashes similar to the following.\n\nUnable to handle kernel NULL pointer dereference at virtual address 00000000000003cd\n...\nInternal error: Oops: 96000021 [#1] PREEMPT SMP\n...\npstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : mutex_lock+0x18/0x60\nlr : thermal_zone_device_update+0x40/0x2e0\nsp : ffff800014c4fc60\nx29: ffff800014c4fc60 x28: ffff365ee3f6e000 x27: ffffdde218426790\nx26: ffff365ee3f6e000 x25: 0000000000000000 x24: ffff365ee3f6e000\nx23: ffffdde218426870 x22: ffff365ee3f6e000 x21: 00000000000003cd\nx20: ffff365ee8bf3308 x19: ffffffffffffffed x18: 0000000000000000\nx17: ffffdde21842689c x16: ffffdde1cb7a0b7c x15: 0000000000000040\nx14: ffffdde21a4889a0 x13: 0000000000000228 x12: 0000000000000000\nx11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000\nx8 : 0000000001120000 x7 : 0000000000000001 x6 : 0000000000000000\nx5 : 0068000878e20f07 x4 : 0000000000000000 x3 : 00000000000003cd\nx2 : ffff365ee3f6e000 x1 : 0000000000000000 x0 : 00000000000003cd\nCall trace:\n mutex_lock+0x18/0x60\n hwmon_notify_event+0xfc/0x110\n 0xffffdde1cb7a0a90\n 0xffffdde1cb7a0b7c\n irq_thread_fn+0x2c/0xa0\n irq_thread+0x134/0x240\n kthread+0x178/0x190\n ret_from_fork+0x10/0x20\nCode: d503201f d503201f d2800001 aa0103e4 (c8e47c02)\n\nJon Hunter reports that the exact call sequence is:\n\nhwmon_notify_event()\n  --\u003e hwmon_thermal_notify()\n    --\u003e thermal_zone_device_update()\n      --\u003e update_temperature()\n        --\u003e mutex_lock()\n\nThe hwmon core needs to handle all errors returned from calls\nto devm_thermal_zone_of_sensor_register(). If the call fails\nwith -ENODEV, report that the sensor was not attached to a\nthermal zone  but continue to register the hwmon device."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: hwmon: Maneja la falla al registrar correctamente el sensor con zona t\u00e9rmica. Si se intenta acceder a un sensor con zona t\u00e9rmica y falla, la llamada a devm_thermal_zone_of_sensor_register() puede devolver -ENODEV. Esto puede provocar fallos similares a los siguientes. No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 00000000000003cd... Error interno: Ups: 96000021 [#1] PREEMPT SMP... pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc: mutex_lock+0x18/0x60 lr: Thermal_zone_device_update+0x40/0x2e0 sp: ffff800014c4fc60 x29: ffff800014c4fc60 x28: ffff365ee3f6e000 x27: ffffdde218426790 x26: f6e000 x25: 0000000000000000 x24: ffff365ee3f6e000 x23: ffffdde218426870 x22: ffff365ee3f6e000 x21: 00000000000003cd x20: ffff365ee8bf3308 ffffffffffffffff x18: 0000000000000000 x17: ffffdde21842689c x16: ffffdde1cb7a0b7c x15: 0000000000000040 x14: ffffdde21a4889a0 x13: 0000000000000228 x12: 00000000000000 x11: 0000000000000000 x10: 0000000000000000 x9: 0000000000000000 x8: 0000000001120000 x7: 0000000000000001 x6: 0000 000000000000 x5: 0068000878e20f07 x4: 0000000000000000 x3: 00000000000003cd x2: ffff365ee3f6e000 x1: 0000000000000000 x0: 00000000000003cd Rastreo de llamadas: mutex_lock+0x18/0x60 hwmon_notify_event+0xfc/0x110 0xffffdde1cb7a0a90 0xffffdde1cb7a0b7c thread_fn+0x2c/0xa0 irq_thread+0x134/0x240 kthread+0x178/0x190 ret_from_fork+0x10/0x20 C\u00f3digo: d503201f d503201f d2800001 aa0103e4 (c8e47c02 ) Jon Hunter informa que la secuencia de llamada exacta es: hwmon_notify_event() --\u0026gt; hwmon_thermal_notify() --\u0026gt; Thermal_zone_device_update() --\u0026gt; update_temperature() --\u0026gt; mutex_lock() El n\u00facleo de hwmon necesita manejar todos los errores devueltos por las llamadas a devm_thermal_zone_of_sensor_register(). Si la llamada falla con -ENODEV, informe que el sensor no estaba conectado a una zona t\u00e9rmica pero contin\u00fae registrando el dispositivo hwmon."
    }
  ],
  "id": "CVE-2022-48942",
  "lastModified": "2024-08-22T18:25:14.867",
  "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"
      }
    ]
  },
  "published": "2024-08-22T04:15:18.953",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/8a1969e14ad93663f9a3ed02ccc2138da9956a0e"
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Sightings

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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.
  • 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.