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CVE-2022-50830

Estado: AplazadaSin puntuar—

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

auxdisplay: hd44780: Fix potential memory leak in hd44780_remove()

hd44780_probe() allocates a memory chunk for hd with kzalloc() and makes "lcd->drvdata->hd44780" point to it. When we call hd44780_remove(), we should release all relevant memory and resource. But "lcd->drvdata ->hd44780" is not released, which will lead to a memory leak.

We should release the "lcd->drvdata->hd44780" in hd44780_remove() to fix the memory leak bug.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

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)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2022-50830",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "718e05ed92ecac0d9d3954bcc8064527c3ce7565",
              "lessThan": "8311961a1724bfc64390c539dedc31e067a80315",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "718e05ed92ecac0d9d3954bcc8064527c3ce7565",
              "lessThan": "6cd37f8232f5e169a723e1d5fbe3b2139c2ef763",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "718e05ed92ecac0d9d3954bcc8064527c3ce7565",
              "lessThan": "5d407911e605702ffcc0e97a6db546592ab27dd0",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "718e05ed92ecac0d9d3954bcc8064527c3ce7565",
              "lessThan": "ddf75a86aba2cfb7ec4497e8692b60c8c8fe0ee7",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/auxdisplay/hd44780.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.11",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.15.100",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.18",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.2.5",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/auxdisplay/hd44780.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-30T13:15:57.490",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/5d407911e605702ffcc0e97a6db546592ab27dd0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6cd37f8232f5e169a723e1d5fbe3b2139c2ef763",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8311961a1724bfc64390c539dedc31e067a80315",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ddf75a86aba2cfb7ec4497e8692b60c8c8fe0ee7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nauxdisplay: hd44780: Fix potential memory leak in hd44780_remove()\n\nhd44780_probe() allocates a memory chunk for hd with kzalloc() and\nmakes \"lcd->drvdata->hd44780\" point to it. When we call hd44780_remove(),\nwe should release all relevant memory and resource. But \"lcd->drvdata\n->hd44780\" is not released, which will lead to a memory leak.\n\nWe should release the \"lcd->drvdata->hd44780\" in hd44780_remove() to fix\nthe memory leak bug."
    }
  ],
  "lastModified": "2026-06-17T05:24:15.743",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}