github - ghsa-jh47-c26g-fr5q

GHSA-JH47-C26G-FR5Q

Vulnerability from github – Published: 2024-11-19 03:31 – Updated: 2025-11-04 00:32

Details

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

ksmbd: fix slab-use-after-free in ksmbd_smb2_session_create

There is a race condition between ksmbd_smb2_session_create and ksmbd_expire_session. This patch add missing sessions_table_lock while adding/deleting session from global session table.

Severity ?

7.0 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50286"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-19T02:16:30Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix slab-use-after-free in ksmbd_smb2_session_create\n\nThere is a race condition between ksmbd_smb2_session_create and\nksmbd_expire_session. This patch add missing sessions_table_lock\nwhile adding/deleting session from global session table.",
  "id": "GHSA-jh47-c26g-fr5q",
  "modified": "2025-11-04T00:32:03Z",
  "published": "2024-11-19T03:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50286"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a77715db22611df50b178374c51e2ba0d58866e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e7a2ad2044377853cf8c59528dac808a08a99c72"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e923503a56b3385b64ae492e3225e4623f560c5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f56446ba5378d19e31040b548a14ee9a8f1500ea"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-50286 (GCVE-0-2024-50286)

Vulnerability from cvelistv5 – Published: 2024-11-19 01:30 – Updated: 2025-11-03 22:28

Summary

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-use-after-free in ksmbd_smb2_session_create There is a race condition between ksmbd_smb2_session_create and ksmbd_expire_session. This patch add missing sessions_table_lock while adding/deleting session from global session table.

Severity ?

7.8 (High)


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

CWE

CWE-416 - Use After Free

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/f56446ba5378d19e3…
	https://git.kernel.org/stable/c/e923503a56b3385b6…
	https://git.kernel.org/stable/c/e7a2ad2044377853c…
	https://git.kernel.org/stable/c/0a77715db22611df5…

Impacted products

Vendor

Product

Version

Linux

Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < f56446ba5378d19e31040b548a14ee9a8f1500ea (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < e923503a56b3385b64ae492e3225e4623f560c5b (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < e7a2ad2044377853cf8c59528dac808a08a99c72 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 0a77715db22611df50b178374c51e2ba0d58866e (git)

Linux

Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 6.1.117 , ≤ 6.1.* (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": {
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      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-50286",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-06T16:07:56.848996Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
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        "problemTypes": [
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            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-06T16:14:33.108Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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        "providerMetadata": {
          "dateUpdated": "2025-11-03T22:28:07.988Z",
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        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/mgmt/user_session.c"
          ],
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          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f56446ba5378d19e31040b548a14ee9a8f1500ea",
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              "lessThan": "e923503a56b3385b64ae492e3225e4623f560c5b",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "e7a2ad2044377853cf8c59528dac808a08a99c72",
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          "versions": [
            {
              "status": "affected",
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            },
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              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
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            },
            {
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            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
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            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "5.15",
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                },
                {
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                  "vulnerable": true
                }
              ],
              "negate": false,
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix slab-use-after-free in ksmbd_smb2_session_create\n\nThere is a race condition between ksmbd_smb2_session_create and\nksmbd_expire_session. This patch add missing sessions_table_lock\nwhile adding/deleting session from global session table."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T09:50:47.065Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        {
          "url": "https://git.kernel.org/stable/c/0a77715db22611df50b178374c51e2ba0d58866e"
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      ],
      "title": "ksmbd: fix slab-use-after-free in ksmbd_smb2_session_create",
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        "engine": "bippy-1.2.0"
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    "datePublished": "2024-11-19T01:30:29.948Z",
    "dateReserved": "2024-10-21T19:36:19.984Z",
    "dateUpdated": "2025-11-03T22:28:07.988Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

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-JH47-C26G-FR5Q

CVE-2024-50286 (GCVE-0-2024-50286)

Tags

Sightings

Nomenclature