fkie_cve-2022-50020
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-11-13 19:33
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: ext4: avoid resizing to a partial cluster size This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration attempting to grow the fs by a negative amount, which trips a BUG_ON and leaves the fs with a corrupted in-memory superblock.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0082e99a9074ff88eff729c70c93454c8588d8e1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/53f62a4201be1cfc1e3c971e566888b182c3ffb0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/72b850a2a996f72541172e7cf686d54a2b29bcd8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7bdfb01fc5f6b3696728aeb527c50386e0ee09a1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80288883294c5b4ed18bae0d8bd9c4a12f297074Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/952b3dc02baaae6a69c71c0aca23e06741182d9aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a6805b3dcf5cd41f2ae3a03dca43411135b99849Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ext4: evitar redimensionar a un tama\u00f1o de cl\u00faster parcial. Este parche evita que se intente redimensionar el sistema de archivos a un l\u00edmite de cl\u00faster no alineado. Un redimensionamiento en l\u00ednea a un tama\u00f1o que no es integral al tama\u00f1o del cl\u00faster provoca que la \u00faltima iteraci\u00f3n intente aumentar el sistema de archivos en una cantidad negativa, lo que activa un BUG_ON y deja el sistema de archivos con un superbloque en memoria da\u00f1ado."
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  "id": "CVE-2022-50020",
  "lastModified": "2025-11-13T19:33:07.413",
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          "attackVector": "LOCAL",
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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
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          "scope": "UNCHANGED",
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  "published": "2025-06-18T11:15:30.150",
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