fkie_cve-2024-42295
Vulnerability from fkie_nvd
Published
2024-08-17 09:15
Modified
2025-11-03 22:17
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: nilfs2: handle inconsistent state in nilfs_btnode_create_block() Syzbot reported that a buffer state inconsistency was detected in nilfs_btnode_create_block(), triggering a kernel bug. It is not appropriate to treat this inconsistency as a bug; it can occur if the argument block address (the buffer index of the newly created block) is a virtual block number and has been reallocated due to corruption of the bitmap used to manage its allocation state. So, modify nilfs_btnode_create_block() and its callers to treat it as a possible filesystem error, rather than triggering a kernel bug.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/012be828a118bf496e666ef1fc47fc0e7358ada2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/02b87e6334a38c65eef49848d3f1ac422f0b2a44Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/19cce46238ffe3546e44b9c74057103ff8b24c62Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/366c3f688dd0288cbe38af1d3a886b5c62372e4aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4811f7af6090e8f5a398fbdd766f903ef6c0d787Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f0a6800b8aec1b453c7fe4c44fcaac5ffe9d52ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be56dfc9be0604291267c07b0e27a69a6bda4899Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e34191cce3ee63dfa5fb241904aaf2a042d5b6d8Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
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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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: handle inconsistent state in nilfs_btnode_create_block()\n\nSyzbot reported that a buffer state inconsistency was detected in\nnilfs_btnode_create_block(), triggering a kernel bug.\n\nIt is not appropriate to treat this inconsistency as a bug; it can occur\nif the argument block address (the buffer index of the newly created\nblock) is a virtual block number and has been reallocated due to\ncorruption of the bitmap used to manage its allocation state.\n\nSo, modify nilfs_btnode_create_block() and its callers to treat it as a\npossible filesystem error, rather than triggering a kernel bug."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: nilfs2: maneja el estado inconsistente en nilfs_btnode_create_block() Syzbot inform\u00f3 que se detect\u00f3 una inconsistencia en el estado del b\u00fafer en nilfs_btnode_create_block(), lo que provoc\u00f3 un error en el kernel. No es apropiado tratar esta inconsistencia como un error; puede ocurrir si la direcci\u00f3n del bloque de argumentos (el \u00edndice del b\u00fafer del bloque reci\u00e9n creado) es un n\u00famero de bloque virtual y se ha reasignado debido a la corrupci\u00f3n del mapa de bits utilizado para administrar su estado de asignaci\u00f3n. Por lo tanto, modifique nilfs_btnode_create_block() y sus llamadores para tratarlo como un posible error del sistema de archivos, en lugar de desencadenar un error del kernel."
    }
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  "id": "CVE-2024-42295",
  "lastModified": "2025-11-03T22:17:57.347",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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        "source": "nvd@nist.gov",
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      "source": "nvd@nist.gov",
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}


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