What is CVE-2021-47147?

CVE-2021-47147 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.2 out of 10, classified as a Memory Leak flaw (CWE-401). CVE-2021-47147 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47147?

CVE-2021-47147 has a CVSS score of 6.2 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-47147?

No patch is currently available for CVE-2021-47147. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47147 actively exploited?

CVE-2021-47147 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2021-47147

Medium

In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: Fix a resource leak in an error handling path If an error occurs after a successful 'pci_ioremap_bar()' call, it must be undone by a corresponding 'pci_iounmap()' call, as already done in the remove function.

Package Linux Kernel

Published 2024-03-25

Last modified 2025-12-10

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

6.2

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-401

CVE-2021-47147 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2021-47147 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/0e38e702f1152479e6afac34f151dbfd99417f99
Patch
Kernel patch commit
https://git.kernel.org/stable/c/9c1bb37f8cad5e2ee1933fa1da9a6baa7876a8e4
Patch

Details

CVE ID CVE-2021-47147

Severity Medium

CVSS score 6.2 / 10

CVSS version 3.1

Published 2024-03-25

Modified 2025-12-10

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47147?

CVE-2021-47147 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.2 out of 10 , classified as a Memory Leak flaw (CWE-401) . CVE-2021-47147 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47147?

CVE-2021-47147 has a CVSS score of 6.2 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-47147?

No patch is currently available for CVE-2021-47147. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47147 actively exploited?

No — CVE-2021-47147 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. View CWE-401 on MITRE CWE →