CVE-2021-47203 (GCVE-0-2021-47203)
Vulnerability from cvelistv5
Published
2024-04-10 18:56
Modified
2026-08-05 08:46
Severity ?
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq() When parsing the txq list in lpfc_drain_txq(), the driver attempts to pass the requests to the adapter. If such an attempt fails, a local "fail_msg" string is set and a log message output. The job is then added to a completions list for cancellation. Processing of any further jobs from the txq list continues, but since "fail_msg" remains set, jobs are added to the completions list regardless of whether a wqe was passed to the adapter. If successfully added to txcmplq, jobs are added to both lists resulting in list corruption. Fix by clearing the fail_msg string after adding a job to the completions list. This stops the subsequent jobs from being added to the completions list unless they had an appropriate failure.
References
Impacted products
Vendor Product Version
Linux Linux Version: 2a9bf3d011303d8da64cd5e0e7fdd95f0c143984
Version: 2a9bf3d011303d8da64cd5e0e7fdd95f0c143984
Version: 2a9bf3d011303d8da64cd5e0e7fdd95f0c143984
Version: 2a9bf3d011303d8da64cd5e0e7fdd95f0c143984
Version: 2a9bf3d011303d8da64cd5e0e7fdd95f0c143984
Version: 2a9bf3d011303d8da64cd5e0e7fdd95f0c143984
Version: 2a9bf3d011303d8da64cd5e0e7fdd95f0c143984
Version: 2a9bf3d011303d8da64cd5e0e7fdd95f0c143984
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      "cveMetadata": "{\"cveId\": \"CVE-2021-47203\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T08:46:43.456Z\", \"dateReserved\": \"2024-03-25T09:12:14.117Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-04-10T18:56:37.066Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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