FKIE_CVE-2022-49833

Vulnerability from fkie_nvd - Published: 2025-05-01 15:16 - Updated: 2025-11-10 21:13
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: clone zoned device info when cloning a device When cloning a btrfs_device, we're not cloning the associated btrfs_zoned_device_info structure of the device in case of a zoned filesystem. Later on this leads to a NULL pointer dereference when accessing the device's zone_info for instance when setting a zone as active. This was uncovered by fstests' testcase btrfs/161.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21e61ec6d0bb786818490e926aa9aeb4de95ad0dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad88cabcec942c033f980cd1e28d56ecdaf5f3b8Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
To clipboard 

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: clone zoned device info when cloning a device\n\nWhen cloning a btrfs_device, we\u0027re not cloning the associated\nbtrfs_zoned_device_info structure of the device in case of a zoned\nfilesystem.\n\nLater on this leads to a NULL pointer dereference when accessing the\ndevice\u0027s zone_info for instance when setting a zone as active.\n\nThis was uncovered by fstests\u0027 testcase btrfs/161."
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      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: zoned: clonar informaci\u00f3n de dispositivo zonificado al clonar un dispositivo. Al clonar un btrfs_device, no se clona la estructura btrfs_zoned_device_info asociada al dispositivo en el caso de un sistema de archivos zonificado. Posteriormente, esto provoca una desreferencia de puntero nulo al acceder a zone_info del dispositivo, por ejemplo, al activar una zona. Esto fue descubierto por el caso de prueba btrfs/161 de fstests."
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  "id": "CVE-2022-49833",
  "lastModified": "2025-11-10T21:13:04.667",
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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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