fkie_cve-2022-49413
Vulnerability from fkie_nvd
Published
2025-02-26 07:01
Modified
2025-03-24 19:52
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: bfq: Update cgroup information before merging bio When the process is migrated to a different cgroup (or in case of writeback just starts submitting bios associated with a different cgroup) bfq_merge_bio() can operate with stale cgroup information in bic. Thus the bio can be merged to a request from a different cgroup or it can result in merging of bfqqs for different cgroups or bfqqs of already dead cgroups and causing possible use-after-free issues. Fix the problem by updating cgroup information in bfq_merge_bio().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a1077f17169a6059992a0bbdb330e0abad1e6d9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b06691af08b41dfd81052a3362514d9827b44bb1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d9165200c5627a2cf4408eefabdf0058bdf95e1aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da9f3025d595956410ceaab2bea01980d7775948Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e8821f45612f2e6d9adb9c6ba0fb4184f57692aaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ea591cd4eb270393810e7be01feb8fde6a34fbbePatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbfq: Update cgroup information before merging bio\n\nWhen the process is migrated to a different cgroup (or in case of\nwriteback just starts submitting bios associated with a different\ncgroup) bfq_merge_bio() can operate with stale cgroup information in\nbic. Thus the bio can be merged to a request from a different cgroup or\nit can result in merging of bfqqs for different cgroups or bfqqs of\nalready dead cgroups and causing possible use-after-free issues. Fix the\nproblem by updating cgroup information in bfq_merge_bio()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bfq: Actualizar la informaci\u00f3n del cgroup antes de fusionar bio Cuando el proceso se migra a un cgroup diferente (o en caso de escritura diferida simplemente comienza a enviar bios asociados con un cgroup diferente) bfq_merge_bio() puede operar con informaci\u00f3n de cgroup obsoleta en bic. Por lo tanto, la bio se puede fusionar con una solicitud de un cgroup diferente o puede resultar en la fusi\u00f3n de bfqqs para diferentes cgroups o bfqqs de cgroups ya inactivos y causar posibles problemas de use-after-free. Solucione el problema actualizando la informaci\u00f3n del cgroup en bfq_merge_bio()."
    }
  ],
  "id": "CVE-2022-49413",
  "lastModified": "2025-03-24T19:52:50.113",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
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  "published": "2025-02-26T07:01:17.800",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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