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CVE-2024-50202 (GCVE-0-2024-50202)

Vulnerability from cvelistv5 – Published: 2024-11-08 05:56 – Updated: 2026-05-11 20:47
VLAI
Title
nilfs2: propagate directory read errors from nilfs_find_entry()
Summary
In the Linux kernel, the following vulnerability has been resolved: nilfs2: propagate directory read errors from nilfs_find_entry() Syzbot reported that a task hang occurs in vcs_open() during a fuzzing test for nilfs2. The root cause of this problem is that in nilfs_find_entry(), which searches for directory entries, ignores errors when loading a directory page/folio via nilfs_get_folio() fails. If the filesystem images is corrupted, and the i_size of the directory inode is large, and the directory page/folio is successfully read but fails the sanity check, for example when it is zero-filled, nilfs_check_folio() may continue to spit out error messages in bursts. Fix this issue by propagating the error to the callers when loading a page/folio fails in nilfs_find_entry(). The current interface of nilfs_find_entry() and its callers is outdated and cannot propagate error codes such as -EIO and -ENOMEM returned via nilfs_find_entry(), so fix it together.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 20:17 UTC
CWE
  • CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < bb857ae1efd3138c653239ed1e7aef14e1242c81 (git)
Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < b4b3dc9e7e604be98a222e9f941f5e93798ca475 (git)
Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < c1d0476885d708a932980b0f28cd90d9bd71db39 (git)
Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < edf8146057264191d5bfe5b91773f13d936dadd3 (git)
Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < 270a6f9df35fa2aea01ec23770dc9b3fc9a12989 (git)
Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < 9698088ac7704e260f492d9c254e29ed7dd8729a (git)
Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < efa810b15a25531cbc2f527330947b9fe16916e7 (git)
Affected: 2ba466d74ed74f073257f86e61519cb8f8f46184 , < 08cfa12adf888db98879dbd735bc741360a34168 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.30
Unaffected: 0 , < 2.6.30 (semver)
Unaffected: 4.19.323 , ≤ 4.19.* (semver)
Unaffected: 5.4.285 , ≤ 5.4.* (semver)
Unaffected: 5.10.228 , ≤ 5.10.* (semver)
Unaffected: 5.15.169 , ≤ 5.15.* (semver)
Unaffected: 6.1.114 , ≤ 6.1.* (semver)
Unaffected: 6.6.58 , ≤ 6.6.* (semver)
Unaffected: 6.11.5 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nilfs2: propagar errores de lectura de directorio desde nilfs_find_entry() Syzbot inform\u00f3 que se produce un bloqueo de tarea en vcs_open() durante una prueba de fuzzing para nilfs2. La causa ra\u00edz de este problema es que en nilfs_find_entry(), que busca entradas de directorio, ignora los errores cuando falla la carga de una p\u00e1gina/folio de directorio a trav\u00e9s de nilfs_get_folio(). Si las im\u00e1genes del sistema de archivos est\u00e1n da\u00f1adas, y el i_size del inodo del directorio es grande, y la p\u00e1gina/folio del directorio se lee correctamente pero falla la comprobaci\u00f3n de cordura, por ejemplo, cuando est\u00e1 llena de ceros, nilfs_check_folio() puede seguir arrojando mensajes de error en r\u00e1fagas. Solucione este problema propagando el error a los llamadores cuando falla la carga de una p\u00e1gina/folio en nilfs_find_entry(). La interfaz actual de nilfs_find_entry() y sus llamadores est\u00e1 desactualizada y no puede propagar c\u00f3digos de error como -EIO y -ENOMEM devueltos a trav\u00e9s de nilfs_find_entry(), as\u00ed que arr\u00e9glenlo juntos."
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: propagate directory read errors from nilfs_find_entry()\n\nSyzbot reported that a task hang occurs in vcs_open() during a fuzzing\ntest for nilfs2.\n\nThe root cause of this problem is that in nilfs_find_entry(), which\nsearches for directory entries, ignores errors when loading a directory\npage/folio via nilfs_get_folio() fails.\n\nIf the filesystem images is corrupted, and the i_size of the directory\ninode is large, and the directory page/folio is successfully read but\nfails the sanity check, for example when it is zero-filled,\nnilfs_check_folio() may continue to spit out error messages in bursts.\n\nFix this issue by propagating the error to the callers when loading a\npage/folio fails in nilfs_find_entry().\n\nThe current interface of nilfs_find_entry() and its callers is outdated\nand cannot propagate error codes such as -EIO and -ENOMEM returned via\nnilfs_find_entry(), so fix it together."
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            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nilfs2: propagar errores de lectura de directorio desde nilfs_find_entry() Syzbot inform\u00f3 que se produce un bloqueo de tarea en vcs_open() durante una prueba de fuzzing para nilfs2. La causa ra\u00edz de este problema es que en nilfs_find_entry(), que busca entradas de directorio, ignora los errores cuando falla la carga de una p\u00e1gina/folio de directorio a trav\u00e9s de nilfs_get_folio(). Si las im\u00e1genes del sistema de archivos est\u00e1n da\u00f1adas, y el i_size del inodo del directorio es grande, y la p\u00e1gina/folio del directorio se lee correctamente pero falla la comprobaci\u00f3n de cordura, por ejemplo, cuando est\u00e1 llena de ceros, nilfs_check_folio() puede seguir arrojando mensajes de error en r\u00e1fagas. Solucione este problema propagando el error a los llamadores cuando falla la carga de una p\u00e1gina/folio en nilfs_find_entry(). La interfaz actual de nilfs_find_entry() y sus llamadores est\u00e1 desactualizada y no puede propagar c\u00f3digos de error como -EIO y -ENOMEM devueltos a trav\u00e9s de nilfs_find_entry(), as\u00ed que arr\u00e9glenlo juntos."
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                  "version": "5.10.228",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.169",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.114",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.58",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.11.*",
                  "status": "unaffected",
                  "version": "6.11.5",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.12",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.19.323",
                      "versionStartIncluding": "2.6.30",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.285",
                      "versionStartIncluding": "2.6.30",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.228",
                      "versionStartIncluding": "2.6.30",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.169",
                      "versionStartIncluding": "2.6.30",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.114",
                      "versionStartIncluding": "2.6.30",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.58",
                      "versionStartIncluding": "2.6.30",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.11.5",
                      "versionStartIncluding": "2.6.30",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12",
                      "versionStartIncluding": "2.6.30",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: propagate directory read errors from nilfs_find_entry()\n\nSyzbot reported that a task hang occurs in vcs_open() during a fuzzing\ntest for nilfs2.\n\nThe root cause of this problem is that in nilfs_find_entry(), which\nsearches for directory entries, ignores errors when loading a directory\npage/folio via nilfs_get_folio() fails.\n\nIf the filesystem images is corrupted, and the i_size of the directory\ninode is large, and the directory page/folio is successfully read but\nfails the sanity check, for example when it is zero-filled,\nnilfs_check_folio() may continue to spit out error messages in bursts.\n\nFix this issue by propagating the error to the callers when loading a\npage/folio fails in nilfs_find_entry().\n\nThe current interface of nilfs_find_entry() and its callers is outdated\nand cannot propagate error codes such as -EIO and -ENOMEM returned via\nnilfs_find_entry(), so fix it together."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T09:48:36.790Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/bb857ae1efd3138c653239ed1e7aef14e1242c81"
            },
            {
              "url": "https://git.kernel.org/stable/c/b4b3dc9e7e604be98a222e9f941f5e93798ca475"
            },
            {
              "url": "https://git.kernel.org/stable/c/c1d0476885d708a932980b0f28cd90d9bd71db39"
            },
            {
              "url": "https://git.kernel.org/stable/c/edf8146057264191d5bfe5b91773f13d936dadd3"
            },
            {
              "url": "https://git.kernel.org/stable/c/270a6f9df35fa2aea01ec23770dc9b3fc9a12989"
            },
            {
              "url": "https://git.kernel.org/stable/c/9698088ac7704e260f492d9c254e29ed7dd8729a"
            },
            {
              "url": "https://git.kernel.org/stable/c/efa810b15a25531cbc2f527330947b9fe16916e7"
            },
            {
              "url": "https://git.kernel.org/stable/c/08cfa12adf888db98879dbd735bc741360a34168"
            }
          ],
          "title": "nilfs2: propagate directory read errors from nilfs_find_entry()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-50202",
        "datePublished": "2024-11-08T05:56:16.544Z",
        "dateReserved": "2024-10-21T19:36:19.969Z",
        "dateUpdated": "2025-10-01T20:27:07.069Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.