github - ghsa-f2f7-qfwq-94j2

ghsa-f2f7-qfwq-94j2

Vulnerability from github

Published

2025-06-18 12:30

Modified

2025-11-14 18:31

Severity ?

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

Details

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

bpf: Fix a data-race around bpf_jit_limit.

While reading bpf_jit_limit, it can be changed concurrently via sysctl, WRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit is long, so we need to add a paired READ_ONCE() to avoid load-tearing.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49967"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-18T11:15:24Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix a data-race around bpf_jit_limit.\n\nWhile reading bpf_jit_limit, it can be changed concurrently via sysctl,\nWRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit\nis long, so we need to add a paired READ_ONCE() to avoid load-tearing.",
  "id": "GHSA-f2f7-qfwq-94j2",
  "modified": "2025-11-14T18:31:23Z",
  "published": "2025-06-18T12:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49967"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292"
    }
  ],
  "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-2022-49967 (GCVE-0-2022-49967)

Vulnerability from cvelistv5

Published

2025-06-18 11:00

Modified

2025-06-18 11:00

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a data-race around bpf_jit_limit. While reading bpf_jit_limit, it can be changed concurrently via sysctl, WRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit is long, so we need to add a paired READ_ONCE() to avoid load-tearing.

References

URL

Tags

	https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292
	https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29

Impacted products

Vendor

Product

Version

Version: ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3
Version: ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3
Version: c98446e1bab6253ddce7144cc2a91c400a323839
Version: a1fe647042affe713a17243cd10e9b25f3d83948
Version: 43caa29c99db5a41b204e8ced01b00e151335ca8

Version: 4.20

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/core.c"
          ],
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          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ba632ad0bacb13197a8f38e7526448974e87f292",
              "status": "affected",
              "version": "ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3",
              "versionType": "git"
            },
            {
              "lessThan": "0947ae1121083d363d522ff7518ee72b55bd8d29",
              "status": "affected",
              "version": "ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3",
              "versionType": "git"
            },
            {
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              "version": "c98446e1bab6253ddce7144cc2a91c400a323839",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a1fe647042affe713a17243cd10e9b25f3d83948",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "43caa29c99db5a41b204e8ced01b00e151335ca8",
              "versionType": "git"
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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": [
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            },
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              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "5.19.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "versionStartIncluding": "4.20",
                  "vulnerable": true
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                  "versionEndExcluding": "6.0",
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                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "4.9.190",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.14.140",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.19.47",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix a data-race around bpf_jit_limit.\n\nWhile reading bpf_jit_limit, it can be changed concurrently via sysctl,\nWRITE_ONCE() in __do_proc_doulongvec_minmax(). The size of bpf_jit_limit\nis long, so we need to add a paired READ_ONCE() to avoid load-tearing."
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      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:00:31.782Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292"
        },
        {
          "url": "https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29"
        }
      ],
      "title": "bpf: Fix a data-race around bpf_jit_limit.",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49967",
    "datePublished": "2025-06-18T11:00:31.782Z",
    "dateReserved": "2025-06-18T10:57:27.384Z",
    "dateUpdated": "2025-06-18T11:00:31.782Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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