Vulnerability-Lookup

GHSA-32J9-8MQ4-72FF

Vulnerability from github – Published: 2024-10-21 15:32 – Updated: 2024-10-23 18:33

Details

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

netfs: Delete subtree of 'fs/netfs' when netfs module exits

In netfs_init() or fscache_proc_init(), we create dentry under 'fs/netfs', but in netfs_exit(), we only delete the proc entry of 'fs/netfs' without deleting its subtree. This triggers the following WARNING:

================================================================== remove_proc_entry: removing non-empty directory 'fs/netfs', leaking at least 'requests' WARNING: CPU: 4 PID: 566 at fs/proc/generic.c:717 remove_proc_entry+0x160/0x1c0 Modules linked in: netfs(-) CPU: 4 UID: 0 PID: 566 Comm: rmmod Not tainted 6.11.0-rc3 #860 RIP: 0010:remove_proc_entry+0x160/0x1c0 Call Trace: netfs_exit+0x12/0x620 [netfs] __do_sys_delete_module.isra.0+0x14c/0x2e0 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e ==================================================================

Therefore use remove_proc_subtree() instead of remove_proc_entry() to fix the above problem.

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-2024-47733"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T13:15:03Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Delete subtree of \u0027fs/netfs\u0027 when netfs module exits\n\nIn netfs_init() or fscache_proc_init(), we create dentry under \u0027fs/netfs\u0027,\nbut in netfs_exit(), we only delete the proc entry of \u0027fs/netfs\u0027 without\ndeleting its subtree. This triggers the following WARNING:\n\n==================================================================\nremove_proc_entry: removing non-empty directory \u0027fs/netfs\u0027, leaking at least \u0027requests\u0027\nWARNING: CPU: 4 PID: 566 at fs/proc/generic.c:717 remove_proc_entry+0x160/0x1c0\nModules linked in: netfs(-)\nCPU: 4 UID: 0 PID: 566 Comm: rmmod Not tainted 6.11.0-rc3 #860\nRIP: 0010:remove_proc_entry+0x160/0x1c0\nCall Trace:\n \u003cTASK\u003e\n netfs_exit+0x12/0x620 [netfs]\n __do_sys_delete_module.isra.0+0x14c/0x2e0\n do_syscall_64+0x4b/0x110\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n==================================================================\n\nTherefore use remove_proc_subtree() instead of remove_proc_entry() to\nfix the above problem.",
  "id": "GHSA-32j9-8mq4-72ff",
  "modified": "2024-10-23T18:33:07Z",
  "published": "2024-10-21T15:32:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47733"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c58a9575e02c2b90a3180007d57105ceaa7c246"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/603f95cefbee06a31b03137b777f03e3c2163d72"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7a9eaf97d56625e55b31a7beb558e1ee185ca461"
    }
  ],
  "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-2024-47733 (GCVE-0-2024-47733)

Vulnerability from cvelistv5 – Published: 2024-10-21 12:14 – Updated: 2026-05-11 20:39

Title

netfs: Delete subtree of 'fs/netfs' when netfs module exits

Summary

In the Linux kernel, the following vulnerability has been resolved: netfs: Delete subtree of 'fs/netfs' when netfs module exits In netfs_init() or fscache_proc_init(), we create dentry under 'fs/netfs', but in netfs_exit(), we only delete the proc entry of 'fs/netfs' without deleting its subtree. This triggers the following WARNING: ================================================================== remove_proc_entry: removing non-empty directory 'fs/netfs', leaking at least 'requests' WARNING: CPU: 4 PID: 566 at fs/proc/generic.c:717 remove_proc_entry+0x160/0x1c0 Modules linked in: netfs(-) CPU: 4 UID: 0 PID: 566 Comm: rmmod Not tainted 6.11.0-rc3 #860 RIP: 0010:remove_proc_entry+0x160/0x1c0 Call Trace: <TASK> netfs_exit+0x12/0x620 [netfs] __do_sys_delete_module.isra.0+0x14c/0x2e0 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e ================================================================== Therefore use remove_proc_subtree() instead of remove_proc_entry() to fix the above problem.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-21 13:00 UTC

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/603f95cefbee06a31…
https://git.kernel.org/stable/c/7a9eaf97d56625e55…
https://git.kernel.org/stable/c/3c58a9575e02c2b90…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab , < 603f95cefbee06a31b03137b777f03e3c2163d72 (git) Affected: 7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab , < 7a9eaf97d56625e55b31a7beb558e1ee185ca461 (git) Affected: 7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab , < 3c58a9575e02c2b90a3180007d57105ceaa7c246 (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 6.10.13 , ≤ 6.10.* (semver) Unaffected: 6.11.2 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-47733",
                "options": [
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                    "Exploitation": "none"
                  },
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                  },
                  {
                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-10-21T13:00:15.346668Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
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          "programFiles": [
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              "versionType": "git"
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              "status": "affected",
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          "versions": [
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              "version": "6.8"
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              "status": "unaffected",
              "version": "0",
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              "status": "unaffected",
              "version": "6.10.13",
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              "status": "unaffected",
              "version": "6.11.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Delete subtree of \u0027fs/netfs\u0027 when netfs module exits\n\nIn netfs_init() or fscache_proc_init(), we create dentry under \u0027fs/netfs\u0027,\nbut in netfs_exit(), we only delete the proc entry of \u0027fs/netfs\u0027 without\ndeleting its subtree. This triggers the following WARNING:\n\n==================================================================\nremove_proc_entry: removing non-empty directory \u0027fs/netfs\u0027, leaking at least \u0027requests\u0027\nWARNING: CPU: 4 PID: 566 at fs/proc/generic.c:717 remove_proc_entry+0x160/0x1c0\nModules linked in: netfs(-)\nCPU: 4 UID: 0 PID: 566 Comm: rmmod Not tainted 6.11.0-rc3 #860\nRIP: 0010:remove_proc_entry+0x160/0x1c0\nCall Trace:\n \u003cTASK\u003e\n netfs_exit+0x12/0x620 [netfs]\n __do_sys_delete_module.isra.0+0x14c/0x2e0\n do_syscall_64+0x4b/0x110\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n==================================================================\n\nTherefore use remove_proc_subtree() instead of remove_proc_entry() to\nfix the above problem."
        }
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    "dateReserved": "2024-09-30T16:00:12.958Z",
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}

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.

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