fkie_cve-2022-48944
Vulnerability from fkie_nvd
Published
2024-08-30 11:15
Modified
2024-09-03 14:26
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 

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              "versionEndExcluding": "5.15.27",
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  "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": "2024-09-03T14:26:56.393",
  "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"
      }
    ]
  },
  "published": "2024-08-30T11:15:14.387",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
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    }
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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