CVE-2024-35997 (GCVE-0-2024-35997)

Vulnerability from cvelistv5 – Published: 2024-05-20 09:48 – Updated: 2026-10-15 00:42
VLAI
Title
HID: i2c-hid: remove I2C_HID_READ_PENDING flag to prevent lock-up
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.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-16 21:06 UTC
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4a200c3b9a40242652b5734630bdd0bcf3aca75f , < 21bfca822cfc1e71796124e93b46e0d9fa584401 (git)
Affected: 4a200c3b9a40242652b5734630bdd0bcf3aca75f , < c448a9fd50f77e8fb9156ff64848aa4295eb3003 (git)
Affected: 4a200c3b9a40242652b5734630bdd0bcf3aca75f , < 5095b93021b899f54c9355bebf36d78854c33a22 (git)
Affected: 4a200c3b9a40242652b5734630bdd0bcf3aca75f , < b65fb50e04a95eec34a9d1bc138454a98a5578d8 (git)
Affected: 4a200c3b9a40242652b5734630bdd0bcf3aca75f , < 0561b65fbd53d3e788c5b0222d9112ca016fd6a1 (git)
Affected: 4a200c3b9a40242652b5734630bdd0bcf3aca75f , < 29e94f295bad5be59cf4271a93e22cdcf5536722 (git)
Affected: 4a200c3b9a40242652b5734630bdd0bcf3aca75f , < 418c5575d56410c6e186ab727bf32ae32447d497 (git)
Affected: 4a200c3b9a40242652b5734630bdd0bcf3aca75f , < 9c0f59e47a90c54d0153f8ddc0f80d7a36207d0e (git)
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Linux Linux Affected: 3.8
Unaffected: 0 , < 3.8 (semver)
Unaffected: 4.19.313 , ≤ 4.19.* (semver)
Unaffected: 5.4.275 , ≤ 5.4.* (semver)
Unaffected: 5.10.216 , ≤ 5.10.* (semver)
Unaffected: 5.15.158 , ≤ 5.15.* (semver)
Unaffected: 6.1.90 , ≤ 6.1.* (semver)
Unaffected: 6.6.30 , ≤ 6.6.* (semver)
Unaffected: 6.8.9 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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linux linux_kernel Affected: 4a200c3b9a40 , < c448a9fd50f7 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Affected: 4a200c3b9a40 , < b65fb50e04a9 (custom)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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linux linux_kernel Affected: 4a200c3b9a40 , < 5095b93021b8 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Affected: 4a200c3b9a40 , < 21bfca822cfc (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Affected: 4a200c3b9a40 , < 29e94f295bad (custom)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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linux linux_kernel Affected: 4a200c3b9a40 , < 418c5575d564 (custom)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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linux linux_kernel Affected: 4a200c3b9a40 , ≤ 9c0f59e47a90 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Affected: 3.8
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 0 , < 3.8 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 4.19.313 , ≤ 4.20 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 5.4.275 , ≤ 5.5 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 5.10.216 , ≤ 5.11 (custom)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 5.15.158 , ≤ 5.16 (custom)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.1.90 , ≤ 6.2 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.6.30 , ≤ 6.7 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.8.9 , ≤ 6.9 (custom)
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Unaffected: 6.9
    cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
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linux linux_kernel Affected: 0 , < 0561b65fbd53 (custom)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < V1.1.1 (custom)
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        {
          "url": "https://git.kernel.org/stable/c/9c0f59e47a90c54d0153f8ddc0f80d7a36207d0e"
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            "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."
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            {
              "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."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T20:15:18.778Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/21bfca822cfc1e71796124e93b46e0d9fa584401"
            },
            {
              "url": "https://git.kernel.org/stable/c/c448a9fd50f77e8fb9156ff64848aa4295eb3003"
            },
            {
              "url": "https://git.kernel.org/stable/c/5095b93021b899f54c9355bebf36d78854c33a22"
            },
            {
              "url": "https://git.kernel.org/stable/c/b65fb50e04a95eec34a9d1bc138454a98a5578d8"
            },
            {
              "url": "https://git.kernel.org/stable/c/0561b65fbd53d3e788c5b0222d9112ca016fd6a1"
            },
            {
              "url": "https://git.kernel.org/stable/c/29e94f295bad5be59cf4271a93e22cdcf5536722"
            },
            {
              "url": "https://git.kernel.org/stable/c/418c5575d56410c6e186ab727bf32ae32447d497"
            },
            {
              "url": "https://git.kernel.org/stable/c/9c0f59e47a90c54d0153f8ddc0f80d7a36207d0e"
            }
          ],
          "title": "HID: i2c-hid: remove I2C_HID_READ_PENDING flag to prevent lock-up",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-35997",
        "datePublished": "2024-05-20T09:48:00.363Z",
        "dateReserved": "2024-05-17T13:50:33.148Z",
        "dateUpdated": "2026-10-15T00:42:03.895Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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