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EUVD-2026-313633

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 07:29

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T07:29:22.092642+00:00",
  "id": "EUVD-2026-313633"
}

CVE-2024-53155 (GCVE-0-2024-53155)

Vulnerability from cvelistv5 – Published: 2024-12-24 11:28 – Updated: 2026-05-11 20:51

Title

ocfs2: fix uninitialized value in ocfs2_file_read_iter()

Summary

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix uninitialized value in ocfs2_file_read_iter() Syzbot has reported the following KMSAN splat: BUG: KMSAN: uninit-value in ocfs2_file_read_iter+0x9a4/0xf80 ocfs2_file_read_iter+0x9a4/0xf80 __io_read+0x8d4/0x20f0 io_read+0x3e/0xf0 io_issue_sqe+0x42b/0x22c0 io_wq_submit_work+0xaf9/0xdc0 io_worker_handle_work+0xd13/0x2110 io_wq_worker+0x447/0x1410 ret_from_fork+0x6f/0x90 ret_from_fork_asm+0x1a/0x30 Uninit was created at: __alloc_pages_noprof+0x9a7/0xe00 alloc_pages_mpol_noprof+0x299/0x990 alloc_pages_noprof+0x1bf/0x1e0 allocate_slab+0x33a/0x1250 ___slab_alloc+0x12ef/0x35e0 kmem_cache_alloc_bulk_noprof+0x486/0x1330 __io_alloc_req_refill+0x84/0x560 io_submit_sqes+0x172f/0x2f30 __se_sys_io_uring_enter+0x406/0x41c0 __x64_sys_io_uring_enter+0x11f/0x1a0 x64_sys_call+0x2b54/0x3ba0 do_syscall_64+0xcd/0x1e0 entry_SYSCALL_64_after_hwframe+0x77/0x7f Since an instance of 'struct kiocb' may be passed from the block layer with 'private' field uninitialized, introduce 'ocfs2_iocb_init_rw_locked()' and use it from where 'ocfs2_dio_end_io()' might take care, i.e. in 'ocfs2_file_read_iter()' and 'ocfs2_file_write_iter()'.

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 20:09 UTC

CWE

CWE-908 - Use of Uninitialized Resource

Assigner

Linux mitre root Scorecard

References

11 references

URL	Tags
https://git.kernel.org/stable/c/6c8f8d1e595dabd53…
https://git.kernel.org/stable/c/f4078ef38d3163e6b…
https://git.kernel.org/stable/c/66b7ddd1804e2c421…
https://git.kernel.org/stable/c/8c966150d5abff58c…
https://git.kernel.org/stable/c/83f8713a0ef1d55d6…
https://git.kernel.org/stable/c/8e0de82ed18ba0e71…
https://git.kernel.org/stable/c/366c933c2ab34dd65…
https://git.kernel.org/stable/c/dc78efe556fed162d…
https://git.kernel.org/stable/c/adc77b19f62d7e80f…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7cdfc3a1c3971c9125c317cb8c2525745851798e , < 6c8f8d1e595dabd5389817f6d798cc8bd95c40ab (git) Affected: 7cdfc3a1c3971c9125c317cb8c2525745851798e , < f4078ef38d3163e6be47403a619558b19c4bfccd (git) Affected: 7cdfc3a1c3971c9125c317cb8c2525745851798e , < 66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f (git) Affected: 7cdfc3a1c3971c9125c317cb8c2525745851798e , < 8c966150d5abff58c3c2bdb9a6e63fd773782905 (git) Affected: 7cdfc3a1c3971c9125c317cb8c2525745851798e , < 83f8713a0ef1d55d6a287bcfadcaab8245ac5098 (git) Affected: 7cdfc3a1c3971c9125c317cb8c2525745851798e , < 8e0de82ed18ba0e71f817adbd81317fd1032ca5a (git) Affected: 7cdfc3a1c3971c9125c317cb8c2525745851798e , < 366c933c2ab34dd6551acc03b4872726b7605143 (git) Affected: 7cdfc3a1c3971c9125c317cb8c2525745851798e , < dc78efe556fed162d48736ef24066f42e463e27c (git) Affected: 7cdfc3a1c3971c9125c317cb8c2525745851798e , < adc77b19f62d7e80f98400b2fca9d700d2afdd6f (git)
Linux	Linux	Affected: 2.6.22 Unaffected: 0 , < 2.6.22 (semver) Unaffected: 4.19.325 , ≤ 4.19.* (semver) Unaffected: 5.4.287 , ≤ 5.4.* (semver) Unaffected: 5.10.231 , ≤ 5.10.* (semver) Unaffected: 5.15.174 , ≤ 5.15.* (semver) Unaffected: 6.1.120 , ≤ 6.1.* (semver) Unaffected: 6.6.64 , ≤ 6.6.* (semver) Unaffected: 6.11.11 , ≤ 6.11.* (semver) Unaffected: 6.12.2 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-53155",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T20:09:39.803725Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-908",
                "description": "CWE-908 Use of Uninitialized Resource",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T20:17:08.814Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:46:41.159Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "programFiles": [
            "fs/ocfs2/aops.h",
            "fs/ocfs2/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6c8f8d1e595dabd5389817f6d798cc8bd95c40ab",
              "status": "affected",
              "version": "7cdfc3a1c3971c9125c317cb8c2525745851798e",
              "versionType": "git"
            },
            {
              "lessThan": "f4078ef38d3163e6be47403a619558b19c4bfccd",
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              "version": "7cdfc3a1c3971c9125c317cb8c2525745851798e",
              "versionType": "git"
            },
            {
              "lessThan": "66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f",
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              "versionType": "git"
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            {
              "lessThan": "8c966150d5abff58c3c2bdb9a6e63fd773782905",
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              "versionType": "git"
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            {
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              "versionType": "git"
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            {
              "lessThan": "8e0de82ed18ba0e71f817adbd81317fd1032ca5a",
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              "version": "7cdfc3a1c3971c9125c317cb8c2525745851798e",
              "versionType": "git"
            },
            {
              "lessThan": "366c933c2ab34dd6551acc03b4872726b7605143",
              "status": "affected",
              "version": "7cdfc3a1c3971c9125c317cb8c2525745851798e",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "7cdfc3a1c3971c9125c317cb8c2525745851798e",
              "versionType": "git"
            },
            {
              "lessThan": "adc77b19f62d7e80f98400b2fca9d700d2afdd6f",
              "status": "affected",
              "version": "7cdfc3a1c3971c9125c317cb8c2525745851798e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ocfs2/aops.h",
            "fs/ocfs2/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.22"
            },
            {
              "lessThan": "2.6.22",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.325",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.287",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.231",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.174",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
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                  "versionEndExcluding": "4.19.325",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.287",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.174",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.11",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.2",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "2.6.22",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix uninitialized value in ocfs2_file_read_iter()\n\nSyzbot has reported the following KMSAN splat:\n\nBUG: KMSAN: uninit-value in ocfs2_file_read_iter+0x9a4/0xf80\n ocfs2_file_read_iter+0x9a4/0xf80\n __io_read+0x8d4/0x20f0\n io_read+0x3e/0xf0\n io_issue_sqe+0x42b/0x22c0\n io_wq_submit_work+0xaf9/0xdc0\n io_worker_handle_work+0xd13/0x2110\n io_wq_worker+0x447/0x1410\n ret_from_fork+0x6f/0x90\n ret_from_fork_asm+0x1a/0x30\n\nUninit was created at:\n __alloc_pages_noprof+0x9a7/0xe00\n alloc_pages_mpol_noprof+0x299/0x990\n alloc_pages_noprof+0x1bf/0x1e0\n allocate_slab+0x33a/0x1250\n ___slab_alloc+0x12ef/0x35e0\n kmem_cache_alloc_bulk_noprof+0x486/0x1330\n __io_alloc_req_refill+0x84/0x560\n io_submit_sqes+0x172f/0x2f30\n __se_sys_io_uring_enter+0x406/0x41c0\n __x64_sys_io_uring_enter+0x11f/0x1a0\n x64_sys_call+0x2b54/0x3ba0\n do_syscall_64+0xcd/0x1e0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nSince an instance of \u0027struct kiocb\u0027 may be passed from the block layer\nwith \u0027private\u0027 field uninitialized, introduce \u0027ocfs2_iocb_init_rw_locked()\u0027\nand use it from where \u0027ocfs2_dio_end_io()\u0027 might take care, i.e. in\n\u0027ocfs2_file_read_iter()\u0027 and \u0027ocfs2_file_write_iter()\u0027."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:51:55.233Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6c8f8d1e595dabd5389817f6d798cc8bd95c40ab"
        },
        {
          "url": "https://git.kernel.org/stable/c/f4078ef38d3163e6be47403a619558b19c4bfccd"
        },
        {
          "url": "https://git.kernel.org/stable/c/66b7ddd1804e2c4216dd7ead8eeb746cdbb3b62f"
        },
        {
          "url": "https://git.kernel.org/stable/c/8c966150d5abff58c3c2bdb9a6e63fd773782905"
        },
        {
          "url": "https://git.kernel.org/stable/c/83f8713a0ef1d55d6a287bcfadcaab8245ac5098"
        },
        {
          "url": "https://git.kernel.org/stable/c/8e0de82ed18ba0e71f817adbd81317fd1032ca5a"
        },
        {
          "url": "https://git.kernel.org/stable/c/366c933c2ab34dd6551acc03b4872726b7605143"
        },
        {
          "url": "https://git.kernel.org/stable/c/dc78efe556fed162d48736ef24066f42e463e27c"
        },
        {
          "url": "https://git.kernel.org/stable/c/adc77b19f62d7e80f98400b2fca9d700d2afdd6f"
        }
      ],
      "title": "ocfs2: fix uninitialized value in ocfs2_file_read_iter()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-53155",
    "datePublished": "2024-12-24T11:28:54.241Z",
    "dateReserved": "2024-11-19T17:17:25.001Z",
    "dateUpdated": "2026-05-11T20:51:55.233Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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EUVD-2026-313633

CVE-2024-53155 (GCVE-0-2024-53155)

Tags

Sightings

Nomenclature

Related by attack behaviour