CVE-2021-47203
"LPFC SCSI Driver List Corruption Vulnerability"
Description
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.
INFO
Published Date :
April 10, 2024, 7:15 p.m.
Last Modified :
March 27, 2025, 9:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the affected kernel packages.
- Reboot the system to apply the updates.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47203.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47203 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47203
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47203 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47203 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 27, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-787 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.256 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.291 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.218 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.293 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.82 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.162 Added Reference Type CVE: https://git.kernel.org/stable/c/16bcbfb56d759c25665f786e33ec633b9508a08f Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/16bcbfb56d759c25665f786e33ec633b9508a08f Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/814d3610c4ce86e8cf285b2cdac0057a42e82de5 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/814d3610c4ce86e8cf285b2cdac0057a42e82de5 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/99154581b05c8fb22607afb7c3d66c1bace6aa5d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/99154581b05c8fb22607afb7c3d66c1bace6aa5d Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ad4776b5eb2e58af1226847fcd3b4f6d051674dd Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ad4776b5eb2e58af1226847fcd3b4f6d051674dd Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/b291d147d0268e93ad866f8bc820ea14497abc9b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b291d147d0268e93ad866f8bc820ea14497abc9b Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/c097bd5a59162156d9c2077a2f58732ffbaa9fca Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c097bd5a59162156d9c2077a2f58732ffbaa9fca Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ec70d80a8642900086447ba0cdc79e3f44d42e8f Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ec70d80a8642900086447ba0cdc79e3f44d42e8f Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/f05a0191b90156e539cccc189b9d87ca2a4d9305 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f05a0191b90156e539cccc189b9d87ca2a4d9305 Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/16bcbfb56d759c25665f786e33ec633b9508a08f Added Reference https://git.kernel.org/stable/c/814d3610c4ce86e8cf285b2cdac0057a42e82de5 Added Reference https://git.kernel.org/stable/c/99154581b05c8fb22607afb7c3d66c1bace6aa5d Added Reference https://git.kernel.org/stable/c/ad4776b5eb2e58af1226847fcd3b4f6d051674dd Added Reference https://git.kernel.org/stable/c/b291d147d0268e93ad866f8bc820ea14497abc9b Added Reference https://git.kernel.org/stable/c/c097bd5a59162156d9c2077a2f58732ffbaa9fca Added Reference https://git.kernel.org/stable/c/ec70d80a8642900086447ba0cdc79e3f44d42e8f Added Reference https://git.kernel.org/stable/c/f05a0191b90156e539cccc189b9d87ca2a4d9305 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 10, 2024
Action Type Old Value New Value Added Description 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. Added Reference kernel.org https://git.kernel.org/stable/c/ad4776b5eb2e58af1226847fcd3b4f6d051674dd [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ec70d80a8642900086447ba0cdc79e3f44d42e8f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f05a0191b90156e539cccc189b9d87ca2a4d9305 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b291d147d0268e93ad866f8bc820ea14497abc9b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/16bcbfb56d759c25665f786e33ec633b9508a08f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c097bd5a59162156d9c2077a2f58732ffbaa9fca [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/814d3610c4ce86e8cf285b2cdac0057a42e82de5 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/99154581b05c8fb22607afb7c3d66c1bace6aa5d [No types assigned]