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CVE-2022-49996

Estado: AnalizadaMedia (5.5)—

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

btrfs: fix possible memory leak in btrfs_get_dev_args_from_path()

In btrfs_get_dev_args_from_path(), btrfs_get_bdev_and_sb() can fail if the path is invalid. In this case, btrfs_get_dev_args_from_path() returns directly without freeing args->uuid and args->fsid allocated before, which causes memory leak.

To fix these possible leaks, when btrfs_get_bdev_and_sb() fails, btrfs_put_dev_args_from_path() is called to clean up the memory.

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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          "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",
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  "published": "2025-06-18T11:15:27.337",
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          "value": "CWE-401"
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  "descriptions": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix possible memory leak in btrfs_get_dev_args_from_path()\n\nIn btrfs_get_dev_args_from_path(), btrfs_get_bdev_and_sb() can fail if\nthe path is invalid. In this case, btrfs_get_dev_args_from_path()\nreturns directly without freeing args->uuid and args->fsid allocated\nbefore, which causes memory leak.\n\nTo fix these possible leaks, when btrfs_get_bdev_and_sb() fails,\nbtrfs_put_dev_args_from_path() is called to clean up the memory."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: se corrige una posible pérdida de memoria en btrfs_get_dev_args_from_path(). En btrfs_get_dev_args_from_path(), btrfs_get_bdev_and_sb() puede fallar si la ruta no es válida. En este caso, btrfs_get_dev_args_from_path() retorna directamente sin liberar los argumentos args->uuid y args->fsid asignados previamente, lo que provoca una pérdida de memoria. Para corregir estas posibles pérdidas, cuando btrfs_get_bdev_and_sb() falla, se llama a btrfs_put_dev_args_from_path() para limpiar la memoria."
    }
  ],
  "lastModified": "2026-06-17T05:19:42.540",
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