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CVE-2026-23260

Estado: AnalizadaMedia (5.5)—

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

regmap: maple: free entry on mas_store_gfp() failure

regcache_maple_write() allocates a new block ('entry') to merge adjacent ranges and then stores it with mas_store_gfp(). When mas_store_gfp() fails, the new 'entry' remains allocated and is never freed, leaking memory.

Free 'entry' on the failure path; on success continue freeing the replaced neighbor blocks ('lower', 'upper').

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-2026-23260",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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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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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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          "product": "Linux",
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              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/base/regmap/regcache-maple.c"
          ],
          "defaultStatus": "affected"
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      ]
    }
  ],
  "published": "2026-03-18T18:16:24.477",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/811b45e2d795d955bb7fd9c816b40036f4fde350",
      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    {
      "url": "https://git.kernel.org/stable/c/d61171cf097156030142643942c217759a9cc806",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f08f2d2907675926ac5657b25f86d921f269602a",
      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: maple: free entry on mas_store_gfp() failure\n\nregcache_maple_write() allocates a new block ('entry') to merge\nadjacent ranges and then stores it with mas_store_gfp().\nWhen mas_store_gfp() fails, the new 'entry' remains allocated and\nis never freed, leaking memory.\n\nFree 'entry' on the failure path; on success continue freeing the\nreplaced neighbor blocks ('lower', 'upper')."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nregmap: maple: liberar entrada en caso de fallo de mas_store_gfp()\n\nregcache_maple_write() asigna un nuevo bloque ('entrada') para fusionar rangos adyacentes y luego lo almacena con mas_store_gfp().\nCuando mas_store_gfp() falla, la nueva 'entrada' permanece asignada y nunca es liberada, provocando una fuga de memoria.\n\nLiberar 'entrada' en la ruta de fallo; en caso de éxito, continuar liberando los bloques vecinos reemplazados ('inferior', 'superior')."
    }
  ],
  "lastModified": "2026-06-17T10:21:12.360",
  "configurations": [
    {
      "nodes": [
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}