CVE-2022-49642 (GCVE-0-2022-49642)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:23 – Updated: 2026-05-11 19:03
VLAI
Title
net: stmmac: dwc-qos: Disable split header for Tegra194
Summary
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwc-qos: Disable split header for Tegra194 There is a long-standing issue with the Synopsys DWC Ethernet driver for Tegra194 where random system crashes have been observed [0]. The problem occurs when the split header feature is enabled in the stmmac driver. In the bad case, a larger than expected buffer length is received and causes the calculation of the total buffer length to overflow. This results in a very large buffer length that causes the kernel to crash. Why this larger buffer length is received is not clear, however, the feedback from the NVIDIA design team is that the split header feature is not supported for Tegra194. Therefore, disable split header support for Tegra194 to prevent these random crashes from occurring. [0] https://lore.kernel.org/linux-tegra/b0b17697-f23e-8fa5-3757-604a86f3a095@nvidia.com/
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee , < 2968830c9b47ce093237483c6207c61065712386 (git)
Affected: 67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee , < 9cc8edc571b871d974b3289868553f9ce544aba6 (git)
Affected: 67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee , < d5c315a787652c35045044877a249f7d5c8a4104 (git)
Affected: 67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee , < cfa4caf3e881ad6dd366c903c34f1c7f21b857ab (git)
Affected: 67afd6d1cfdf0d0461fe3c4c922447f3e9b1c6ee , < 029c1c2059e9c4b38f97a06204cdecd10cfbeb8a (git)
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Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.4.207 , ≤ 5.4.* (semver)
Unaffected: 5.10.132 , ≤ 5.10.* (semver)
Unaffected: 5.15.56 , ≤ 5.15.* (semver)
Unaffected: 5.18.13 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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Esto da como resultado una longitud de b\u00fafer muy grande que hace que el kernel se bloquee. No est\u00e1 claro por qu\u00e9 se recibe esta longitud de b\u00fafer mayor, sin embargo, la retroalimentaci\u00f3n del equipo de dise\u00f1o de NVIDIA es que la funci\u00f3n de encabezado dividido no es compatible con Tegra194. Por lo tanto, deshabilite la compatibilidad con encabezado dividido para Tegra194 para evitar que ocurran estas fallas aleatorias. 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}


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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.

Sightings

Author Source Type Date Other

Nomenclature

  • 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.