Improper Input Validation Affecting kernel-doc package, versions *
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Test your applications- Snyk ID SNYK-RHEL7-KERNELDOC-6604337
- published 12 Apr 2024
- disclosed 10 Apr 2024
Introduced: 10 Apr 2024
CVE-2021-47203 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:7 kernel-doc.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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
- https://access.redhat.com/security/cve/CVE-2021-47203
- https://git.kernel.org/stable/c/16bcbfb56d759c25665f786e33ec633b9508a08f
- https://git.kernel.org/stable/c/814d3610c4ce86e8cf285b2cdac0057a42e82de5
- https://git.kernel.org/stable/c/99154581b05c8fb22607afb7c3d66c1bace6aa5d
- https://git.kernel.org/stable/c/ad4776b5eb2e58af1226847fcd3b4f6d051674dd
- https://git.kernel.org/stable/c/b291d147d0268e93ad866f8bc820ea14497abc9b
- https://git.kernel.org/stable/c/c097bd5a59162156d9c2077a2f58732ffbaa9fca
- https://git.kernel.org/stable/c/ec70d80a8642900086447ba0cdc79e3f44d42e8f
- https://git.kernel.org/stable/c/f05a0191b90156e539cccc189b9d87ca2a4d9305