github - ghsa-8r5m-9xx4-3v9j

GHSA-8R5M-9XX4-3V9J

Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-05-07 15:31

Details

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

netfilter: nf_tables: netlink notifier might race to release objects

commit release path is invoked via call_rcu and it runs lockless to release the objects after rcu grace period. The netlink notifier handler might win race to remove objects that the transaction context is still referencing from the commit release path.

Call rcu_barrier() to ensure pending rcu callbacks run to completion if the list of transactions to be destroyed is not empty.

Severity ?

4.7 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49920"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T15:16:17Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: netlink notifier might race to release objects\n\ncommit release path is invoked via call_rcu and it runs lockless to\nrelease the objects after rcu grace period. The netlink notifier handler\nmight win race to remove objects that the transaction context is still\nreferencing from the commit release path.\n\nCall rcu_barrier() to ensure pending rcu callbacks run to completion\nif the list of transactions to be destroyed is not empty.",
  "id": "GHSA-8r5m-9xx4-3v9j",
  "modified": "2025-05-07T15:31:27Z",
  "published": "2025-05-01T15:31:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49920"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1ffe7100411a8b9015115ce124cd6c9c9da6f8e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4bc8271db21ea9f1c86a1ca4d64999f184d4aae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49920 (GCVE-0-2022-49920)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:10 – Updated: 2025-10-01 14:58

Summary

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: netlink notifier might race to release objects commit release path is invoked via call_rcu and it runs lockless to release the objects after rcu grace period. The netlink notifier handler might win race to remove objects that the transaction context is still referencing from the commit release path. Call rcu_barrier() to ensure pending rcu callbacks run to completion if the list of transactions to be destroyed is not empty.

Severity ?

4.7 (Medium)


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

CWE

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/1ffe7100411a8b901…
	https://git.kernel.org/stable/c/e40b7c44d19e327ad…
	https://git.kernel.org/stable/c/d4bc8271db21ea9f1…

Impacted products

Vendor

Product

Version

Linux

Affected: 6001a930ce0378b62210d4f83583fc88a903d89d , < 1ffe7100411a8b9015115ce124cd6c9c9da6f8e3 (git)
Affected: 6001a930ce0378b62210d4f83583fc88a903d89d , < e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0 (git)
Affected: 6001a930ce0378b62210d4f83583fc88a903d89d , < d4bc8271db21ea9f1c86a1ca4d64999f184d4aae (git)

Linux

Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.78 , ≤ 5.15.* (semver)
Unaffected: 6.0.8 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 4.7,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-49920",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T14:58:43.450275Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-362",
                "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T14:58:46.228Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nf_tables_api.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6001a930ce0378b62210d4f83583fc88a903d89d",
              "versionType": "git"
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              "lessThan": "e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0",
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              "lessThan": "d4bc8271db21ea9f1c86a1ca4d64999f184d4aae",
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            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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            },
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              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.8",
              "versionType": "semver"
            },
            {
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              "version": "6.1",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                }
              ],
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:48:43.498Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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        {
          "url": "https://git.kernel.org/stable/c/d4bc8271db21ea9f1c86a1ca4d64999f184d4aae"
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      "title": "netfilter: nf_tables: netlink notifier might race to release objects",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49920",
    "datePublished": "2025-05-01T14:10:59.436Z",
    "dateReserved": "2025-05-01T14:05:17.252Z",
    "dateUpdated": "2025-10-01T14:58:46.228Z",
    "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-8R5M-9XX4-3V9J

CVE-2022-49920 (GCVE-0-2022-49920)

Tags

Sightings

Nomenclature