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CVE-2026-43435

Estado: AnalizadaMedia (5.5)—

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

rust_binder: fix oneway spam detection

The spam detection logic in TreeRange was executed before the current request was inserted into the tree. So the new request was not being factored in the spam calculation. Fix this by moving the logic after the new range has been inserted.

Also, the detection logic for ArrayRange was missing altogether which meant large spamming transactions could get away without being detected. Fix this by implementing an equivalent low_oneway_space() in ArrayRange.

Note that I looked into centralizing this logic in RangeAllocator but iterating through 'state' and 'size' got a bit too complicated (for me) and I abandoned this effort.

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-2026-43435",
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  "metrics": {
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          "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",
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          "defaultStatus": "affected"
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  "published": "2026-05-08T15:16:55.827",
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrust_binder: fix oneway spam detection\n\nThe spam detection logic in TreeRange was executed before the current\nrequest was inserted into the tree. So the new request was not being\nfactored in the spam calculation. Fix this by moving the logic after\nthe new range has been inserted.\n\nAlso, the detection logic for ArrayRange was missing altogether which\nmeant large spamming transactions could get away without being detected.\nFix this by implementing an equivalent low_oneway_space() in ArrayRange.\n\nNote that I looked into centralizing this logic in RangeAllocator but\niterating through 'state' and 'size' got a bit too complicated (for me)\nand I abandoned this effort."
    }
  ],
  "lastModified": "2026-06-17T10:49:35.713",
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