Vulnerability-Lookup

GHSA-QGCH-26FJ-87R3

Vulnerability from github – Published: 2024-11-08 06:30 – Updated: 2024-11-18 21:30

Details

In the Linux kernel, the following vulnerability has been resolved:

udf: refactor inode_bmap() to handle error

Refactor inode_bmap() to handle error since udf_next_aext() can return error now. On situations like ftruncate, udf_extend_file() can now detect errors and bail out early without resorting to checking for particular offsets and assuming internal behavior of these functions.

Severity

3.3 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2024-50211"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-08T06:15:17Z",
    "severity": "LOW"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nudf: refactor inode_bmap() to handle error\n\nRefactor inode_bmap() to handle error since udf_next_aext() can return\nerror now. On situations like ftruncate, udf_extend_file() can now\ndetect errors and bail out early without resorting to checking for\nparticular offsets and assuming internal behavior of these functions.",
  "id": "GHSA-qgch-26fj-87r3",
  "modified": "2024-11-18T21:30:44Z",
  "published": "2024-11-08T06:30:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50211"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/493447dd8336607fce426f7879e581095f6c606e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b22d9a5698abf04341f8fbc30141e0673863c3a6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c226964ec786f3797ed389a16392ce4357697d24"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-50211 (GCVE-0-2024-50211)

Vulnerability from cvelistv5 – Published: 2024-11-08 06:10 – Updated: 2026-08-05 11:42

Title

udf: refactor inode_bmap() to handle error

Summary

In the Linux kernel, the following vulnerability has been resolved: udf: refactor inode_bmap() to handle error Refactor inode_bmap() to handle error since udf_next_aext() can return error now. On situations like ftruncate, udf_extend_file() can now detect errors and bail out early without resorting to checking for particular offsets and assuming internal behavior of these functions.

Severity

7.8 (High)


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

3.3 (Low)


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

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-noinfo Not enough information

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/493447dd8336607fc…
https://git.kernel.org/stable/c/b22d9a5698abf0434…
https://git.kernel.org/stable/c/c226964ec786f3797…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 493447dd8336607fce426f7879e581095f6c606e (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b22d9a5698abf04341f8fbc30141e0673863c3a6 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c226964ec786f3797ed389a16392ce4357697d24 (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (semver) Unaffected: 6.6.59 , ≤ 6.6.* (semver) Unaffected: 6.11.6 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "LOW",
              "baseScore": 3.3,
              "baseSeverity": "LOW",
              "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:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-50211",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T20:17:19.011673Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T20:27:05.842Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/udf/directory.c",
            "fs/udf/inode.c",
            "fs/udf/partition.c",
            "fs/udf/truncate.c",
            "fs/udf/udfdecl.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "493447dd8336607fce426f7879e581095f6c606e",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "b22d9a5698abf04341f8fbc30141e0673863c3a6",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "c226964ec786f3797ed389a16392ce4357697d24",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/udf/directory.c",
            "fs/udf/inode.c",
            "fs/udf/partition.c",
            "fs/udf/truncate.c",
            "fs/udf/udfdecl.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.12"
            },
            {
              "lessThan": "2.6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.59",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.6",
              "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": "6.6.59",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.6",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nudf: refactor inode_bmap() to handle error\n\nRefactor inode_bmap() to handle error since udf_next_aext() can return\nerror now. On situations like ftruncate, udf_extend_file() can now\ndetect errors and bail out early without resorting to checking for\nparticular offsets and assuming internal behavior of these functions."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - Exploitation requires local access to mount a crafted UDF filesystem image (loop device, USB stick, or optical disc) and then issue an ftruncate()/truncate() syscall against a file on it. There is no remote or network-facing path into fs/udf.\nAC:L - The attacker fully controls the on-disk UDF metadata (indirect extent chains, lengthAllocDescs, extent locations pointing past device capacity) that forces udf_next_aext() into its error paths, and syzbot produced a deterministic C reproducer; no race and no uncontrollable memory-layout precondition is involved.\nPR:L - On mainstream Linux desktops an active unprivileged user can loop-setup and mount a crafted UDF image via udisks2/polkit (allow_active by default) or have removable UDF media automounted, and only ordinary write access to a file is needed to call ftruncate(); no real root in the initial namespace is required in that deployment.\nUI:N - The attacker performs both steps \u2014 supplying/mounting the image and issuing the ftruncate() \u2014 with no action by any other user in the unprivileged-loop-mount scenario.\nS:U - The out-of-bounds read and write occur in kernel slab memory within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The confirmed KASAN slab-out-of-bounds read pulls adjacent kernel heap contents into extent.extLength/extLocation, which are then written into the file\u0027s allocation descriptors on the attacker-readable image and used as block addresses, disclosing kernel memory and arbitrary device blocks.\nI:H - The same corrupted extent_position flows into udf_write_aext()/__udf_add_aext(), which write an 8\u201316 byte allocation descriptor through an unchecked ptr = i_data + epos-\u003eoffset - alloc_offset + lenEAttr, giving an out-of-bounds slab write with attacker-influenced offset and data \u2014 a heap corruption primitive suitable for control-flow hijacking.\nA:H - The out-of-bounds access reliably produces a KASAN/oops kernel crash, and the corrupted i_lenExtents plus huge computed new_elen drive udf_do_extend_file() into unbounded extent creation, so an unprivileged local user can panic or hang the system."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:42:32.555Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/493447dd8336607fce426f7879e581095f6c606e"
        },
        {
          "url": "https://git.kernel.org/stable/c/b22d9a5698abf04341f8fbc30141e0673863c3a6"
        },
        {
          "url": "https://git.kernel.org/stable/c/c226964ec786f3797ed389a16392ce4357697d24"
        }
      ],
      "title": "udf: refactor inode_bmap() to handle error",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50211",
    "datePublished": "2024-11-08T06:10:08.444Z",
    "dateReserved": "2024-10-21T19:36:19.970Z",
    "dateUpdated": "2026-08-05T11:42:32.555Z",
    "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.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.