fkie_cve-2022-49114
Vulnerability from fkie_nvd
Published
2025-02-26 07:00
Modified
2025-03-25 16:19
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: scsi: libfc: Fix use after free in fc_exch_abts_resp() fc_exch_release(ep) will decrease the ep's reference count. When the reference count reaches zero, it is freed. But ep is still used in the following code, which will lead to a use after free. Return after the fc_exch_release() call to avoid use after free.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1d7effe5fff9d28e45e18ac3a564067c7ddfe898Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/271add11994ba1a334859069367e04d2be2ebdd4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/412dd8299b02e4410fe77b8396953c1a8dde183aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/499d198494e77b6533251b9b909baf5c101129cbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4a131d4ea8b581ac9b01d3a72754db4848be3232Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5cf2ce8967b0d98c8cfa4dc42ef4fcf080f5c836Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6044ad64f41c87382cfeeca281573d1886d80cbePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87909291762d08fdb60d19069d7a89b5b308d0efPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f581df412bc45c95176e3c808ee2839c05b2ab0cPatch
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 *


To clipboard 

{
  "configurations": [
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: libfc: Fix use after free in fc_exch_abts_resp()\n\nfc_exch_release(ep) will decrease the ep\u0027s reference count. When the\nreference count reaches zero, it is freed. But ep is still used in the\nfollowing code, which will lead to a use after free.\n\nReturn after the fc_exch_release() call to avoid use after free."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: libfc: Se corrige el use-after-free en fc_exch_abts_resp() fc_exch_release(ep) reducir\u00e1 el recuento de referencias de ep. Cuando el recuento de referencias llega a cero, se libera. Pero ep todav\u00eda se usa en el siguiente c\u00f3digo, lo que provocar\u00e1 un use-after-free. Regrese despu\u00e9s de la llamada fc_exch_release() para evitar el use-after-free."
    }
  ],
  "id": "CVE-2022-49114",
  "lastModified": "2025-03-25T16:19:46.613",
  "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"
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        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
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  "published": "2025-02-26T07:00:48.773",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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