cve-2024-26685
Vulnerability from cvelistv5
Published
2024-04-03 14:54
Modified
2024-11-07 14:55
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
nilfs2: fix potential bug in end_buffer_async_write
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2c3bdba00283a6c7a5b19481a59a730f46063803
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5bc09b397cbf1221f8a8aacb1152650c9195b02b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/626daab3811b772086aef1bf8eed3ffe6f523eff
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6589f0f72f8edd1fa11adce4eedbd3615f2e78ab
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8fa90634ec3e9cc50f42dd605eec60f2d146ced8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c4a09fdac625e64abe478dcf88bfa20406616928
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d31c8721e816eff5ca6573cc487754f357c093cd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f3e4963566f58726d3265a727116a42b591f6596
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-26685",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-04-03T18:35:50.019246Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-07T14:55:46.383Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:14:12.823Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c4a09fdac625e64abe478dcf88bfa20406616928"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d31c8721e816eff5ca6573cc487754f357c093cd"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f3e4963566f58726d3265a727116a42b591f6596"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8fa90634ec3e9cc50f42dd605eec60f2d146ced8"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/6589f0f72f8edd1fa11adce4eedbd3615f2e78ab"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2c3bdba00283a6c7a5b19481a59a730f46063803"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/626daab3811b772086aef1bf8eed3ffe6f523eff"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/5bc09b397cbf1221f8a8aacb1152650c9195b02b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nilfs2/segment.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c4a09fdac625",
              "status": "affected",
              "version": "7f42ec394156",
              "versionType": "git"
            },
            {
              "lessThan": "d31c8721e816",
              "status": "affected",
              "version": "7f42ec394156",
              "versionType": "git"
            },
            {
              "lessThan": "f3e4963566f5",
              "status": "affected",
              "version": "7f42ec394156",
              "versionType": "git"
            },
            {
              "lessThan": "8fa90634ec3e",
              "status": "affected",
              "version": "7f42ec394156",
              "versionType": "git"
            },
            {
              "lessThan": "6589f0f72f8e",
              "status": "affected",
              "version": "7f42ec394156",
              "versionType": "git"
            },
            {
              "lessThan": "2c3bdba00283",
              "status": "affected",
              "version": "7f42ec394156",
              "versionType": "git"
            },
            {
              "lessThan": "626daab3811b",
              "status": "affected",
              "version": "7f42ec394156",
              "versionType": "git"
            },
            {
              "lessThan": "5bc09b397cbf",
              "status": "affected",
              "version": "7f42ec394156",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/nilfs2/segment.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.12"
            },
            {
              "lessThan": "3.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.307",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.269",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.210",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.79",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.18",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix potential bug in end_buffer_async_write\n\nAccording to a syzbot report, end_buffer_async_write(), which handles the\ncompletion of block device writes, may detect abnormal condition of the\nbuffer async_write flag and cause a BUG_ON failure when using nilfs2.\n\nNilfs2 itself does not use end_buffer_async_write().  But, the async_write\nflag is now used as a marker by commit 7f42ec394156 (\"nilfs2: fix issue\nwith race condition of competition between segments for dirty blocks\") as\na means of resolving double list insertion of dirty blocks in\nnilfs_lookup_dirty_data_buffers() and nilfs_lookup_node_buffers() and the\nresulting crash.\n\nThis modification is safe as long as it is used for file data and b-tree\nnode blocks where the page caches are independent.  However, it was\nirrelevant and redundant to also introduce async_write for segment summary\nand super root blocks that share buffers with the backing device.  This\nled to the possibility that the BUG_ON check in end_buffer_async_write\nwould fail as described above, if independent writebacks of the backing\ndevice occurred in parallel.\n\nThe use of async_write for segment summary buffers has already been\nremoved in a previous change.\n\nFix this issue by removing the manipulation of the async_write flag for\nthe remaining super root block buffer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-05T09:13:51.866Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c4a09fdac625e64abe478dcf88bfa20406616928"
        },
        {
          "url": "https://git.kernel.org/stable/c/d31c8721e816eff5ca6573cc487754f357c093cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/f3e4963566f58726d3265a727116a42b591f6596"
        },
        {
          "url": "https://git.kernel.org/stable/c/8fa90634ec3e9cc50f42dd605eec60f2d146ced8"
        },
        {
          "url": "https://git.kernel.org/stable/c/6589f0f72f8edd1fa11adce4eedbd3615f2e78ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c3bdba00283a6c7a5b19481a59a730f46063803"
        },
        {
          "url": "https://git.kernel.org/stable/c/626daab3811b772086aef1bf8eed3ffe6f523eff"
        },
        {
          "url": "https://git.kernel.org/stable/c/5bc09b397cbf1221f8a8aacb1152650c9195b02b"
        }
      ],
      "title": "nilfs2: fix potential bug in end_buffer_async_write",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26685",
    "datePublished": "2024-04-03T14:54:47.688Z",
    "dateReserved": "2024-02-19T14:20:24.153Z",
    "dateUpdated": "2024-11-07T14:55:46.383Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26685\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-03T15:15:52.210\",\"lastModified\":\"2024-11-07T15:35:09.993\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnilfs2: fix potential bug in end_buffer_async_write\\n\\nAccording to a syzbot report, end_buffer_async_write(), which handles the\\ncompletion of block device writes, may detect abnormal condition of the\\nbuffer async_write flag and cause a BUG_ON failure when using nilfs2.\\n\\nNilfs2 itself does not use end_buffer_async_write().  But, the async_write\\nflag is now used as a marker by commit 7f42ec394156 (\\\"nilfs2: fix issue\\nwith race condition of competition between segments for dirty blocks\\\") as\\na means of resolving double list insertion of dirty blocks in\\nnilfs_lookup_dirty_data_buffers() and nilfs_lookup_node_buffers() and the\\nresulting crash.\\n\\nThis modification is safe as long as it is used for file data and b-tree\\nnode blocks where the page caches are independent.  However, it was\\nirrelevant and redundant to also introduce async_write for segment summary\\nand super root blocks that share buffers with the backing device.  This\\nled to the possibility that the BUG_ON check in end_buffer_async_write\\nwould fail as described above, if independent writebacks of the backing\\ndevice occurred in parallel.\\n\\nThe use of async_write for segment summary buffers has already been\\nremoved in a previous change.\\n\\nFix this issue by removing the manipulation of the async_write flag for\\nthe remaining super root block buffer.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nilfs2: corrige un posible error en end_buffer_async_write Seg\u00fan un informe de syzbot, end_buffer_async_write(), que maneja la finalizaci\u00f3n de las escrituras del dispositivo de bloque, puede detectar una condici\u00f3n anormal del indicador async_write del b\u00fafer y causar un Error BUG_ON al usar nilfs2. Nilfs2 en s\u00ed no usa end_buffer_async_write(). Pero el indicador async_write ahora se usa como marcador en el commit 7f42ec394156 (\\\"nilfs2: soluciona el problema con la condici\u00f3n de ejecuci\u00f3n de competencia entre segmentos por bloques sucios\\\") como un medio para resolver la inserci\u00f3n de lista doble de bloques sucios en nilfs_lookup_dirty_data_buffers() y nilfs_lookup_node_buffers( ) y el accidente resultante. Esta modificaci\u00f3n es segura siempre que se utilice para datos de archivos y bloques de nodos de \u00e1rbol b donde las cach\u00e9s de p\u00e1ginas sean independientes. Sin embargo, era irrelevante y redundante introducir tambi\u00e9n async_write para el resumen de segmento y los bloques s\u00faper ra\u00edz que comparten buffers con el dispositivo de respaldo. Esto gener\u00f3 la posibilidad de que la verificaci\u00f3n BUG_ON en end_buffer_async_write fallara como se describe anteriormente, si se produjeran reescrituras independientes del dispositivo de respaldo en paralelo. El uso de async_write para buffers de resumen de segmentos ya se elimin\u00f3 en un cambio anterior. Solucione este problema eliminando la manipulaci\u00f3n del indicador async_write para el b\u00fafer de bloque s\u00faper ra\u00edz restante.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2c3bdba00283a6c7a5b19481a59a730f46063803\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5bc09b397cbf1221f8a8aacb1152650c9195b02b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/626daab3811b772086aef1bf8eed3ffe6f523eff\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6589f0f72f8edd1fa11adce4eedbd3615f2e78ab\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8fa90634ec3e9cc50f42dd605eec60f2d146ced8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c4a09fdac625e64abe478dcf88bfa20406616928\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d31c8721e816eff5ca6573cc487754f357c093cd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f3e4963566f58726d3265a727116a42b591f6596\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.