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CVE-2022-50075

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

tracing/eprobes: Have event probes be consistent with kprobes and uprobes

Currently, if a symbol "@" is attempted to be used with an event probe (eprobes), it will cause a NULL pointer dereference crash.

Both kprobes and uprobes can reference data other than the main registers. Such as immediate address, symbols and the current task name. Have eprobes do the same thing.

For "comm", if "comm" is used and the event being attached to does not have the "comm" field, then make it the "$comm" that kprobes has. This is consistent to the way histograms and filters work.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2022-50075",
  "cveTags": [],
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          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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  "published": "2025-06-18T11:15:36.397",
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          "value": "CWE-476"
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/eprobes: Have event probes be consistent with kprobes and uprobes\n\nCurrently, if a symbol \"@\" is attempted to be used with an event probe\n(eprobes), it will cause a NULL pointer dereference crash.\n\nBoth kprobes and uprobes can reference data other than the main registers.\nSuch as immediate address, symbols and the current task name. Have eprobes\ndo the same thing.\n\nFor \"comm\", if \"comm\" is used and the event being attached to does not\nhave the \"comm\" field, then make it the \"$comm\" that kprobes has. This is\nconsistent to the way histograms and filters work."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing/eprobes: Que las sondas de eventos sean consistentes con kprobes y uprobes. Actualmente, si se intenta usar el símbolo \"@\" con una sonda de eventos (eprobes), se producirá un fallo por desreferencia de puntero nulo. Tanto kprobes como uprobes pueden referenciar datos distintos a los registros principales, como la dirección inmediata, los símbolos y el nombre de la tarea actual. Que eprobes haga lo mismo. Para \"comm\", si se usa \"comm\" y el evento al que se adjunta no tiene el campo \"comm\", se debe usar \"$comm\" que tiene kprobes. Esto es consistente con el funcionamiento de los histogramas y filtros."
    }
  ],
  "lastModified": "2026-06-17T05:22:42.533",
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