fkie_cve-2023-54100
Vulnerability from fkie_nvd
Published
2025-12-24 13:16
Modified
2025-12-24 13:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: qedi: Fix use after free bug in qedi_remove() In qedi_probe() we call __qedi_probe() which initializes &qedi->recovery_work with qedi_recovery_handler() and &qedi->board_disable_work with qedi_board_disable_work(). When qedi_schedule_recovery_handler() is called, schedule_delayed_work() will finally start the work. In qedi_remove(), which is called to remove the driver, the following sequence may be observed: Fix this by finishing the work before cleanup in qedi_remove(). CPU0 CPU1 |qedi_recovery_handler qedi_remove | __qedi_remove | iscsi_host_free | scsi_host_put | //free shost | |iscsi_host_for_each_session |//use qedi->shost Cancel recovery_work and board_disable_work in __qedi_remove().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/124027cd1a624ce0347adcd59241a9966a726b22
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3738a230831e861503119ee2691c4a7dc56ed60a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e756a59cee6a8a79b9059c5bdf0ecbf5bb8d151
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89f6023fc321c958a0fb11f143a6eb4544ae3940
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c5749639f2d0a1f6cbe187d05f70c2e7c544d748
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fa19c533ab19161298f0780bcc6523af88f6fd20
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qedi: Fix use after free bug in qedi_remove()\n\nIn qedi_probe() we call __qedi_probe() which initializes\n\u0026qedi-\u003erecovery_work with qedi_recovery_handler() and\n\u0026qedi-\u003eboard_disable_work with qedi_board_disable_work().\n\nWhen qedi_schedule_recovery_handler() is called, schedule_delayed_work()\nwill finally start the work.\n\nIn qedi_remove(), which is called to remove the driver, the following\nsequence may be observed:\n\nFix this by finishing the work before cleanup in qedi_remove().\n\nCPU0                  CPU1\n\n                     |qedi_recovery_handler\nqedi_remove          |\n  __qedi_remove      |\niscsi_host_free      |\nscsi_host_put        |\n//free shost         |\n                     |iscsi_host_for_each_session\n                     |//use qedi-\u003eshost\n\nCancel recovery_work and board_disable_work in __qedi_remove()."
    }
  ],
  "id": "CVE-2023-54100",
  "lastModified": "2025-12-24T13:16:11.890",
  "metrics": {},
  "published": "2025-12-24T13:16:11.890",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/124027cd1a624ce0347adcd59241a9966a726b22"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3738a230831e861503119ee2691c4a7dc56ed60a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5e756a59cee6a8a79b9059c5bdf0ecbf5bb8d151"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/89f6023fc321c958a0fb11f143a6eb4544ae3940"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c5749639f2d0a1f6cbe187d05f70c2e7c544d748"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fa19c533ab19161298f0780bcc6523af88f6fd20"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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