github - ghsa-pfgc-2q82-vggq

ghsa-pfgc-2q82-vggq

Vulnerability from github

Published

2024-09-13 06:30

Modified

2024-09-20 18:32

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

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

nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease

It is not safe to dereference fl->c.flc_owner without first confirming fl->fl_lmops is the expected manager. nfsd4_deleg_getattr_conflict() tests fl_lmops but largely ignores the result and assumes that flc_owner is an nfs4_delegation anyway. This is wrong.

With this patch we restore the "!= &nfsd_lease_mng_ops" case to behave as it did before the change mentioned below. This is the same as the current code, but without any reference to a possible delegation.

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2024-46690"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-13T06:15:13Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease\n\nIt is not safe to dereference fl-\u003ec.flc_owner without first confirming\nfl-\u003efl_lmops is the expected manager.  nfsd4_deleg_getattr_conflict()\ntests fl_lmops but largely ignores the result and assumes that flc_owner\nis an nfs4_delegation anyway.  This is wrong.\n\nWith this patch we restore the \"!= \u0026nfsd_lease_mng_ops\" case to behave\nas it did before the change mentioned below.  This is the same as the\ncurrent code, but without any reference to a possible delegation.",
  "id": "GHSA-pfgc-2q82-vggq",
  "modified": "2024-09-20T18:32:24Z",
  "published": "2024-09-13T06:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46690"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b46a871e980e3daa16fd5e77539966492e8910a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40927f3d0972bf86357a32a5749be71a551241b6"
    }
  ],
  "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-2024-46690

Vulnerability from cvelistv5

Published

2024-09-13 05:29

Modified

2024-12-19 09:21

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease It is not safe to dereference fl->c.flc_owner without first confirming fl->fl_lmops is the expected manager. nfsd4_deleg_getattr_conflict() tests fl_lmops but largely ignores the result and assumes that flc_owner is an nfs4_delegation anyway. This is wrong. With this patch we restore the "!= &nfsd_lease_mng_ops" case to behave as it did before the change mentioned below. This is the same as the current code, but without any reference to a possible delegation.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/1b46a871e980e3daa16fd5e77539966492e8910a
	https://git.kernel.org/stable/c/40927f3d0972bf86357a32a5749be71a551241b6

Impacted products

Vendor

Product

Version

▼

Linux

Version: c5967721e1063648b0506481585ba7e2e49a075e
Version: c5967721e1063648b0506481585ba7e2e49a075e

Linux

Version: 6.9

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-46690",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-29T15:07:08.535058Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-29T15:07:22.328Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nfsd/nfs4state.c"
          ],
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          "versions": [
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              "versionType": "git"
            },
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        },
        {
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          "versions": [
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              "versionType": "semver"
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              "versionType": "original_commit_for_fix"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease\n\nIt is not safe to dereference fl-\u003ec.flc_owner without first confirming\nfl-\u003efl_lmops is the expected manager.  nfsd4_deleg_getattr_conflict()\ntests fl_lmops but largely ignores the result and assumes that flc_owner\nis an nfs4_delegation anyway.  This is wrong.\n\nWith this patch we restore the \"!= \u0026nfsd_lease_mng_ops\" case to behave\nas it did before the change mentioned below.  This is the same as the\ncurrent code, but without any reference to a possible delegation."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:21:02.857Z",
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        {
          "url": "https://git.kernel.org/stable/c/40927f3d0972bf86357a32a5749be71a551241b6"
        }
      ],
      "title": "nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease",
      "x_generator": {
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    }
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-46690",
    "datePublished": "2024-09-13T05:29:20.368Z",
    "dateReserved": "2024-09-11T15:12:18.249Z",
    "dateUpdated": "2024-12-19T09:21:02.857Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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