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Improper Input Validation The advisory has been revoked - it doesn't affect any version of package kernel-debug-modules  (opens in a new tab)

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.04% (16th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELDEBUGMODULES-6609571
  • published12 Apr 2024
  • disclosed10 Apr 2024
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Introduced: 10 Apr 2024

CVE-2021-47203  (opens in a new tab)
CWE-20  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules package and not the kernel-debug-modules package as distributed by Centos.

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.