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CVE-2024-42295 (GCVE-0-2024-42295)

Vulnerability from cvelistv5 – Published: 2024-08-17 09:09 – Updated: 2026-05-11 20:29
VLAI
Title
nilfs2: handle inconsistent state in nilfs_btnode_create_block()
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.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:10 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 19cce46238ffe3546e44b9c74057103ff8b24c62 (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 02b87e6334a38c65eef49848d3f1ac422f0b2a44 (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 5f0a6800b8aec1b453c7fe4c44fcaac5ffe9d52e (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < e34191cce3ee63dfa5fb241904aaf2a042d5b6d8 (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 012be828a118bf496e666ef1fc47fc0e7358ada2 (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < be56dfc9be0604291267c07b0e27a69a6bda4899 (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 366c3f688dd0288cbe38af1d3a886b5c62372e4a (git)
Affected: a60be987d45dd510aeb54389526f9957cfab106c , < 4811f7af6090e8f5a398fbdd766f903ef6c0d787 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.30
Unaffected: 0 , < 2.6.30 (semver)
Unaffected: 4.19.320 , ≤ 4.19.* (semver)
Unaffected: 5.4.282 , ≤ 5.4.* (semver)
Unaffected: 5.10.224 , ≤ 5.10.* (semver)
Unaffected: 5.15.165 , ≤ 5.15.* (semver)
Unaffected: 6.1.103 , ≤ 6.1.* (semver)
Unaffected: 6.6.44 , ≤ 6.6.* (semver)
Unaffected: 6.10.3 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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            "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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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: nilfs2: handle inconsistent state in nilfs_btnode_create_block()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-42295.json",
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      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-42295.json",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.