CVE-2022-49967 (GCVE-0-2022-49967)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:00 – Updated: 2026-05-23 15:23
VLAI
Title
bpf: Fix a data-race around bpf_jit_limit.
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.
Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3 , < ba632ad0bacb13197a8f38e7526448974e87f292 (git)
Affected: ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3 , < 0947ae1121083d363d522ff7518ee72b55bd8d29 (git)
Affected: c98446e1bab6253ddce7144cc2a91c400a323839 (git)
Affected: a1fe647042affe713a17243cd10e9b25f3d83948 (git)
Affected: 43caa29c99db5a41b204e8ced01b00e151335ca8 (git)
Affected: 4.9.190 , < 4.10 (semver)
Affected: 4.14.140 , < 4.15 (semver)
Affected: 4.19.47 , < 4.20 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 5.19.8 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ba632ad0bacb13197a8f38e7526448974e87f292",
              "status": "affected",
              "version": "ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3",
              "versionType": "git"
            },
            {
              "lessThan": "0947ae1121083d363d522ff7518ee72b55bd8d29",
              "status": "affected",
              "version": "ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c98446e1bab6253ddce7144cc2a91c400a323839",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a1fe647042affe713a17243cd10e9b25f3d83948",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "43caa29c99db5a41b204e8ced01b00e151335ca8",
              "versionType": "git"
            },
            {
              "lessThan": "4.10",
              "status": "affected",
              "version": "4.9.190",
              "versionType": "semver"
            },
            {
              "lessThan": "4.15",
              "status": "affected",
              "version": "4.14.140",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.47",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.8",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:23:23.987Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "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"
      }
    }
  },
  "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": "2026-05-23T15:23:23.987Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49967",
      "date": "2026-09-28",
      "epss": "0.0014",
      "percentile": "0.02795"
    },
    "microsoft_vex": {
      "current_release_date": "2025-11-25T01:35:46.000Z",
      "cve": "CVE-2022-49967",
      "id": "msrc_CVE-2022-49967",
      "initial_release_date": "2025-06-02T00:00:00.000Z",
      "product_status:known_not_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "bpf: Fix a data-race around bpf_jit_limit.",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2022-49967.json",
      "version": "3"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "kernel/bpf/core.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "ba632ad0bacb13197a8f38e7526448974e87f292",
                    "status": "affected",
                    "version": "ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "0947ae1121083d363d522ff7518ee72b55bd8d29",
                    "status": "affected",
                    "version": "ede95a63b5e84ddeea6b0c473b36ab8bfd8c6ce3",
                    "versionType": "git"
                  },
                  {
                    "status": "affected",
                    "version": "c98446e1bab6253ddce7144cc2a91c400a323839",
                    "versionType": "git"
                  },
                  {
                    "status": "affected",
                    "version": "a1fe647042affe713a17243cd10e9b25f3d83948",
                    "versionType": "git"
                  },
                  {
                    "status": "affected",
                    "version": "43caa29c99db5a41b204e8ced01b00e151335ca8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "4.10",
                    "status": "affected",
                    "version": "4.9.190",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "4.15",
                    "status": "affected",
                    "version": "4.14.140",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "4.20",
                    "status": "affected",
                    "version": "4.19.47",
                    "versionType": "semver"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "kernel/bpf/core.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "4.20"
                  },
                  {
                    "lessThan": "4.20",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.19.*",
                    "status": "unaffected",
                    "version": "5.19.8",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.0",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "EB95EC0B-E131-496F-95B2-43B85D87FC76",
                    "versionEndExcluding": "4.10",
                    "versionStartIncluding": "4.9.190",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E090A776-F3EE-4671-BC37-BF7B3F9B6BAC",
                    "versionEndExcluding": "4.15",
                    "versionStartIncluding": "4.14.140",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "28AB50AA-CC2B-4FCB-AB14-9707DDF767A2",
                    "versionEndExcluding": "5.19.8",
                    "versionStartIncluding": "4.19.47",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "5F0AD220-F6A9-4012-8636-155F1B841FAD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "A46498B3-78E1-4623-AAE1-94D29A42BE4E",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "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."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Se corrige una ejecuci\u00f3n de datos en torno a bpf_jit_limit. Al leer bpf_jit_limit, se puede modificar simult\u00e1neamente mediante sysctl, WRITE_ONCE() en __do_proc_doulongvec_minmax(). El tama\u00f1o de bpf_jit_limit es grande, por lo que es necesario a\u00f1adir un par de READ_ONCE() para evitar la fragmentaci\u00f3n de la carga."
          }
        ],
        "id": "CVE-2022-49967",
        "lastModified": "2026-06-17T05:19:38.483",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "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"
              },
              "exploitabilityScore": 1.0,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-06-18T11:15:24.013",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/0947ae1121083d363d522ff7518ee72b55bd8d29"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ba632ad0bacb13197a8f38e7526448974e87f292"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-362"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:34:00+00:00",
      "cve": "CVE-2022-49967",
      "id": "CVE-2022-49967",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "201",
      "product_status:known_affected": "70",
      "product_status:known_not_affected": "118",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bpf: Fix a data-race around bpf_jit_limit.",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49967.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.