FKIE_CVE-2022-48944

Vulnerability from fkie_nvd - Published: 2024-08-30 11:15 - Updated: 2026-06-17 05:16
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: sched: Fix yet more sched_fork() races Where commit 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid sched_task_group") fixed a fork race vs cgroup, it opened up a race vs syscalls by not placing the task on the runqueue before it gets exposed through the pidhash. Commit 13765de8148f ("sched/fair: Fix fault in reweight_entity") is trying to fix a single instance of this, instead fix the whole class of issues, effectively reverting this commit.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3411613611a5cddf7e80908010dc87cb527dd13bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b1e8206582f9d680cff7d04828708c8b6ab32957Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c65cfd89cef669d90c59f3bf150af6458137a04fPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.10.80
linux linux_kernel 5.14.19
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/linux/sched/task.h",
            "kernel/fork.c",
            "kernel/sched/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3411613611a5cddf7e80908010dc87cb527dd13b",
              "status": "affected",
              "version": "3869eecf050416a1d19bac60926f6b5d64b0aa58",
              "versionType": "git"
            },
            {
              "lessThan": "c65cfd89cef669d90c59f3bf150af6458137a04f",
              "status": "affected",
              "version": "4ef0c5c6b5ba1f38f0ea1cedad0cad722f00c14a",
              "versionType": "git"
            },
            {
              "lessThan": "b1e8206582f9d680cff7d04828708c8b6ab32957",
              "status": "affected",
              "version": "4ef0c5c6b5ba1f38f0ea1cedad0cad722f00c14a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c85c6fadbef0a3eab41540ea628fa8fe8928c820",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "25d40b828fb855ee62e1039c65a666c9afd60786",
              "versionType": "git"
            },
            {
              "lessThan": "5.15.27",
              "status": "affected",
              "version": "5.15.3",
              "versionType": "semver"
            },
            {
              "lessThan": "5.11",
              "status": "affected",
              "version": "5.10.80",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15",
              "status": "affected",
              "version": "5.14.19",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/linux/sched/task.h",
            "kernel/fork.c",
            "kernel/sched/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "61C603D7-C7CD-4505-AF1B-EBFDD4D152AF",
              "versionEndExcluding": "5.15.27",
              "versionStartIncluding": "5.15.3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B871B667-EDC0-435D-909E-E918D8D90995",
              "versionEndExcluding": "5.16.13",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.10.80:*:*:*:*:*:*:*",
              "matchCriteriaId": "75930186-8AC7-4632-8B1F-1EE8F2B29A25",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.14.19:*:*:*:*:*:*:*",
              "matchCriteriaId": "482F2B24-1A1B-4F6F-B2B0-4C8783AD0811",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched: Fix yet more sched_fork() races\n\nWhere commit 4ef0c5c6b5ba (\"kernel/sched: Fix sched_fork() access an\ninvalid sched_task_group\") fixed a fork race vs cgroup, it opened up a\nrace vs syscalls by not placing the task on the runqueue before it\ngets exposed through the pidhash.\n\nCommit 13765de8148f (\"sched/fair: Fix fault in reweight_entity\") is\ntrying to fix a single instance of this, instead fix the whole class\nof issues, effectively reverting this commit."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sched: Fix yet more sched_fork() races Donde el commit 4ef0c5c6b5ba (\"kernel/sched: Fix sched_fork() access an invalid sched_task_group\") corrigi\u00f3 una ejecuci\u00f3n de bifurcaci\u00f3n contra cgroup, abri\u00f3 una carrera contra syscalls al no colocar la tarea en la cola de ejecuci\u00f3n antes de que se exponga a trav\u00e9s de pidhash. El commit 13765de8148f (\"sched/fair: Fix fault in reweight_entity\") est\u00e1 intentando corregir una \u00fanica instancia de esto, en lugar de corregir toda la clase de problemas, revirtiendo efectivamente esta confirmaci\u00f3n."
    }
  ],
  "id": "CVE-2022-48944",
  "lastModified": "2026-06-17T05:16:40.697",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-48944",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T15:27:12.990295Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-08-30T11:15:14.387",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3411613611a5cddf7e80908010dc87cb527dd13b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b1e8206582f9d680cff7d04828708c8b6ab32957"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c65cfd89cef669d90c59f3bf150af6458137a04f"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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