github - ghsa-w4qv-rrv4-jm4w

GHSA-W4QV-RRV4-JM4W

Vulnerability from github – Published: 2024-11-19 03:31 – Updated: 2025-10-01 21:30

Details

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

ksmbd: check outstanding simultaneous SMB operations

If Client send simultaneous SMB operations to ksmbd, It exhausts too much memory through the "ksmbd_work_cache”. It will cause OOM issue. ksmbd has a credit mechanism but it can't handle this problem. This patch add the check if it exceeds max credits to prevent this problem by assuming that one smb request consumes at least one credit.

Severity ?

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50285"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-19T02:16:30Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: check outstanding simultaneous SMB operations\n\nIf Client send simultaneous SMB operations to ksmbd, It exhausts too much\nmemory through the \"ksmbd_work_cache\u201d. It will cause OOM issue.\nksmbd has a credit mechanism but it can\u0027t handle this problem. This patch\nadd the check if it exceeds max credits to prevent this problem by assuming\nthat one smb request consumes at least one credit.",
  "id": "GHSA-w4qv-rrv4-jm4w",
  "modified": "2025-10-01T21:30:35Z",
  "published": "2024-11-19T03:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50285"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a77d947f599b1f39065015bec99390d0c0022ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f993777275cbd8f74765c4f9d9285cb907c9be5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e257ac6fe138623cf59fca8898abdf659dbc8356"
    }
  ],
  "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:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-50285 (GCVE-0-2024-50285)

Vulnerability from cvelistv5 – Published: 2024-11-19 01:30 – Updated: 2025-10-01 20:17

Summary

In the Linux kernel, the following vulnerability has been resolved: ksmbd: check outstanding simultaneous SMB operations If Client send simultaneous SMB operations to ksmbd, It exhausts too much memory through the "ksmbd_work_cache”. It will cause OOM issue. ksmbd has a credit mechanism but it can't handle this problem. This patch add the check if it exceeds max credits to prevent this problem by assuming that one smb request consumes at least one credit.

Severity ?

5.5 (Medium)


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

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/1f993777275cbd8f7…
	https://git.kernel.org/stable/c/e257ac6fe138623cf…
	https://git.kernel.org/stable/c/0a77d947f599b1f39…

Impacted products

Vendor

Product

Version

Linux

Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 1f993777275cbd8f74765c4f9d9285cb907c9be5 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < e257ac6fe138623cf59fca8898abdf659dbc8356 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 0a77d947f599b1f39065015bec99390d0c0022ee (git)

Linux

Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 6.6.61 , ≤ 6.6.* (semver)
Unaffected: 6.11.8 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (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": 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-2024-50285",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T20:14:33.951916Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-770",
                "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T20:17:21.944Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/connection.c",
            "fs/smb/server/connection.h",
            "fs/smb/server/server.c",
            "fs/smb/server/smb_common.c",
            "fs/smb/server/smb_common.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1f993777275cbd8f74765c4f9d9285cb907c9be5",
              "status": "affected",
              "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
              "versionType": "git"
            },
            {
              "lessThan": "e257ac6fe138623cf59fca8898abdf659dbc8356",
              "status": "affected",
              "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
              "versionType": "git"
            },
            {
              "lessThan": "0a77d947f599b1f39065015bec99390d0c0022ee",
              "status": "affected",
              "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/connection.c",
            "fs/smb/server/connection.h",
            "fs/smb/server/server.c",
            "fs/smb/server/smb_common.c",
            "fs/smb/server/smb_common.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.61",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.8",
              "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": "6.6.61",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.8",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: check outstanding simultaneous SMB operations\n\nIf Client send simultaneous SMB operations to ksmbd, It exhausts too much\nmemory through the \"ksmbd_work_cache\u201d. It will cause OOM issue.\nksmbd has a credit mechanism but it can\u0027t handle this problem. This patch\nadd the check if it exceeds max credits to prevent this problem by assuming\nthat one smb request consumes at least one credit."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T09:50:45.903Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1f993777275cbd8f74765c4f9d9285cb907c9be5"
        },
        {
          "url": "https://git.kernel.org/stable/c/e257ac6fe138623cf59fca8898abdf659dbc8356"
        },
        {
          "url": "https://git.kernel.org/stable/c/0a77d947f599b1f39065015bec99390d0c0022ee"
        }
      ],
      "title": "ksmbd: check outstanding simultaneous SMB operations",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50285",
    "datePublished": "2024-11-19T01:30:28.603Z",
    "dateReserved": "2024-10-21T19:36:19.984Z",
    "dateUpdated": "2025-10-01T20:17:21.944Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-W4QV-RRV4-JM4W

CVE-2024-50285 (GCVE-0-2024-50285)

Tags

Sightings

Nomenclature