fkie_cve-2022-49921
Vulnerability from fkie_nvd
Published
2025-05-01 15:16
Modified
2025-05-07 13:27
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: net: sched: Fix use after free in red_enqueue() We can't use "skb" again after passing it to qdisc_enqueue(). This is basically identical to commit 2f09707d0c97 ("sch_sfb: Also store skb len before calling child enqueue").
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/170e5317042c302777ed6d59fdb84af9b0219d4ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/52e0429471976785c155bfbf51d80990c6cd46e2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5960b9081baca85cc7dcb14aec1de85999ea9d36Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/795afe0b9bb6c915f0299a8e309936519be01619Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8bdc2acd420c6f3dd1f1c78750ec989f02a1e2b9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a238cdcf2bdc72207c74375fc8be13ee549ca9dbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e877f8fa49fbccc63cb2df2e9179bddc695b825aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fc4b50adb400ee5ec527a04073174e8e73a139faPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: Fix use after free in red_enqueue()\n\nWe can\u0027t use \"skb\" again after passing it to qdisc_enqueue().  This is\nbasically identical to commit 2f09707d0c97 (\"sch_sfb: Also store skb\nlen before calling child enqueue\")."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: sched: Se corrige el use after free en red_enqueue(). No podemos volver a usar \"skb\" despu\u00e9s de pasarlo a qdisc_enqueue(). Esto es pr\u00e1cticamente id\u00e9ntico a el commit 2f09707d0c97 (\"sch_sfb: Tambi\u00e9n se almacena la longitud de skb antes de llamar a la cola secundaria\")."
    }
  ],
  "id": "CVE-2022-49921",
  "lastModified": "2025-05-07T13:27:50.000",
  "metrics": {
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          "attackVector": "LOCAL",
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          "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-05-01T15:16:17.627",
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  "vulnStatus": "Analyzed",
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          "lang": "en",
          "value": "CWE-416"
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      "source": "nvd@nist.gov",
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}


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