FKIE_CVE-2022-49858

Vulnerability from fkie_nvd - Published: 2025-05-01 15:16 - Updated: 2025-11-10 21:03
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: octeontx2-pf: Fix SQE threshold checking Current way of checking available SQE count which is based on HW updated SQB count could result in driver submitting an SQE even before CQE for the previously transmitted SQE at the same index is processed in NAPI resulting losing SKB pointers, hence a leak. Fix this by checking a consumer index which is updated once CQE is processed.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/015e3c0a3b16193aab23beefe4719484b9984c2dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f0dfc4c88ef39be0ba736aa0ce6119263fc19aebPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: Fix SQE threshold checking\n\nCurrent way of checking available SQE count which is based on\nHW updated SQB count could result in driver submitting an SQE\neven before CQE for the previously transmitted SQE at the same\nindex is processed in NAPI resulting losing SKB pointers,\nhence a leak. Fix this by checking a consumer index which\nis updated once CQE is processed."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: octeontx2-pf: Se corrige la comprobaci\u00f3n del umbral de SQE. La forma actual de comprobar el recuento de SQE disponibles, basada en el recuento de SQB actualizado por hardware, podr\u00eda provocar que el controlador env\u00ede un SQE incluso antes de que se procese en NAPI el CQE del SQE previamente transmitido en el mismo \u00edndice, lo que resulta en la p\u00e9rdida de punteros SKB y, por lo tanto, una fuga. Se soluciona esto comprobando un \u00edndice de consumidor que se actualiza una vez procesado el CQE."
    }
  ],
  "id": "CVE-2022-49858",
  "lastModified": "2025-11-10T21:03:21.900",
  "metrics": {
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          "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"
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-05-01T15:16:09.410",
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      "source": "nvd@nist.gov",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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