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CVE-2022-49994

Estado: AnalizadaMedia (5.5)—

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

bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem

The vmemmap pages is marked by kmemleak when allocated from memblock. Remove it from kmemleak when freeing the page. Otherwise, when we reuse the page, kmemleak may report such an error and then stop working.

kmemleak: Cannot insert 0xffff98fb6eab3d40 into the object search tree (overlaps existing) kmemleak: Kernel memory leak detector disabled kmemleak: Object 0xffff98fb6be00000 (size 335544320): kmemleak: comm "swapper", pid 0, jiffies 4294892296 kmemleak: min_count = 0 kmemleak: count = 0 kmemleak: flags = 0x1 kmemleak: checksum = 0 kmemleak: backtrace:

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-2022-49994",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "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"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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      "affectedData": [
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          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "f41f2ed43ca5258d70d53290d1951a21621f95c8",
              "lessThan": "16a12ee619e39e8112f61b603255c16b73b6264b",
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              "lessThan": "dd0ff4d12dd284c334f7e9b07f8f335af856ac78",
              "versionType": "git"
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          ],
          "programFiles": [
            "mm/bootmem_info.c"
          ],
          "defaultStatus": "unaffected"
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          "product": "Linux",
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              "version": "0",
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              "status": "unaffected",
              "version": "5.15.64",
              "versionType": "semver",
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            {
              "status": "unaffected",
              "version": "5.19.6",
              "versionType": "semver",
              "lessThanOrEqual": "5.19.*"
            },
            {
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "mm/bootmem_info.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-06-18T11:15:27.107",
  "references": [
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      "url": "https://git.kernel.org/stable/c/16a12ee619e39e8112f61b603255c16b73b6264b",
      "tags": [
        "Patch"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9ae15c4ba2be1e5a62503b6d873e84beb5fcbb5a",
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "tags": [
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      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "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\nbootmem: remove the vmemmap pages from kmemleak in put_page_bootmem\n\nThe vmemmap pages is marked by kmemleak when allocated from memblock. \nRemove it from kmemleak when freeing the page.  Otherwise, when we reuse\nthe page, kmemleak may report such an error and then stop working.\n\n kmemleak: Cannot insert 0xffff98fb6eab3d40 into the object search tree (overlaps existing)\n kmemleak: Kernel memory leak detector disabled\n kmemleak: Object 0xffff98fb6be00000 (size 335544320):\n kmemleak:   comm \"swapper\", pid 0, jiffies 4294892296\n kmemleak:   min_count = 0\n kmemleak:   count = 0\n kmemleak:   flags = 0x1\n kmemleak:   checksum = 0\n kmemleak:   backtrace:"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bootmem: eliminar las páginas vmemmap de kmemleak en put_page_bootmem. Las páginas vmemmap están marcadas por kmemleak cuando se asignan desde memblock. Elimínelas de kmemleak al liberar la página. De lo contrario, al reutilizar la página, kmemleak podría informar dicho error y dejar de funcionar. kmemleak: No se puede insertar 0xffff98fb6eab3d40 en el árbol de búsqueda de objetos (se superpone a los existentes) kmemleak: Detector de fugas de memoria del kernel deshabilitado kmemleak: Objeto 0xffff98fb6be00000 (tamaño 335544320): kmemleak: comm \"swapper\", pid 0, jiffies 4294892296 kmemleak: min_count = 0 kmemleak: count = 0 kmemleak: flags = 0x1 kmemleak: checksum = 0 kmemleak: backtrace:"
    }
  ],
  "lastModified": "2026-06-17T05:19:42.317",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "5.15.64",
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}