FKIE_CVE-2024-35997

Vulnerability from fkie_nvd - Published: 2024-05-20 10:15 - Updated: 2025-01-16 21:15
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: HID: i2c-hid: remove I2C_HID_READ_PENDING flag to prevent lock-up The flag I2C_HID_READ_PENDING is used to serialize I2C operations. However, this is not necessary, because I2C core already has its own locking for that. More importantly, this flag can cause a lock-up: if the flag is set in i2c_hid_xfer() and an interrupt happens, the interrupt handler (i2c_hid_irq) will check this flag and return immediately without doing anything, then the interrupt handler will be invoked again in an infinite loop. Since interrupt handler is an RT task, it takes over the CPU and the flag-clearing task never gets scheduled, thus we have a lock-up. Delete this unnecessary flag.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0561b65fbd53d3e788c5b0222d9112ca016fd6a1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21bfca822cfc1e71796124e93b46e0d9fa584401Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/29e94f295bad5be59cf4271a93e22cdcf5536722Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/418c5575d56410c6e186ab727bf32ae32447d497Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5095b93021b899f54c9355bebf36d78854c33a22Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9c0f59e47a90c54d0153f8ddc0f80d7a36207d0ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b65fb50e04a95eec34a9d1bc138454a98a5578d8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c448a9fd50f77e8fb9156ff64848aa4295eb3003Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0561b65fbd53d3e788c5b0222d9112ca016fd6a1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/21bfca822cfc1e71796124e93b46e0d9fa584401Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/29e94f295bad5be59cf4271a93e22cdcf5536722Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/418c5575d56410c6e186ab727bf32ae32447d497Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5095b93021b899f54c9355bebf36d78854c33a22Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9c0f59e47a90c54d0153f8ddc0f80d7a36207d0ePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b65fb50e04a95eec34a9d1bc138454a98a5578d8Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c448a9fd50f77e8fb9156ff64848aa4295eb3003Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: i2c-hid: remove I2C_HID_READ_PENDING flag to prevent lock-up\n\nThe flag I2C_HID_READ_PENDING is used to serialize I2C operations.\nHowever, this is not necessary, because I2C core already has its own\nlocking for that.\n\nMore importantly, this flag can cause a lock-up: if the flag is set in\ni2c_hid_xfer() and an interrupt happens, the interrupt handler\n(i2c_hid_irq) will check this flag and return immediately without doing\nanything, then the interrupt handler will be invoked again in an\ninfinite loop.\n\nSince interrupt handler is an RT task, it takes over the CPU and the\nflag-clearing task never gets scheduled, thus we have a lock-up.\n\nDelete this unnecessary flag."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: HID: i2c-hid: elimine el indicador I2C_HID_READ_PENDING para evitar el bloqueo. El indicador I2C_HID_READ_PENDING se utiliza para serializar operaciones I2C. Sin embargo, esto no es necesario, porque el n\u00facleo I2C ya tiene su propio bloqueo para ello. M\u00e1s importante a\u00fan, este indicador puede causar un bloqueo: si el indicador est\u00e1 configurado en i2c_hid_xfer() y ocurre una interrupci\u00f3n, el controlador de interrupciones (i2c_hid_irq) verificar\u00e1 este indicador y regresar\u00e1 inmediatamente sin hacer nada, entonces se invocar\u00e1 el controlador de interrupciones. nuevamente en un bucle infinito. Dado que el controlador de interrupciones es una tarea RT, se hace cargo de la CPU y la tarea de limpieza de banderas nunca se programa, por lo que tenemos un bloqueo. Elimine esta bandera innecesaria."
    }
  ],
  "id": "CVE-2024-35997",
  "lastModified": "2025-01-16T21:15:15.603",
  "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"
      }
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  "published": "2024-05-20T10:15:13.960",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
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          "value": "CWE-667"
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      "source": "nvd@nist.gov",
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}


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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.
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  • 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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