What is CVE-2021-47167?

CVE-2021-47167 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.0 onward and patched in 5.4.124, 5.10.42, 5.12.9 and others. CVE-2021-47167 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47167?

CVE-2021-47167 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-47167?

Yes, CVE-2021-47167 has been patched. Fixed versions include 5.4.124, 5.10.42, 5.12.9 and others. If you are running Linux kernel 4.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47167 actively exploited?

CVE-2021-47167 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47167

Medium

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix an Oopsable condition in __nfs_pageio_add_request() Ensure that nfs_pageio_error_cleanup() resets the mirror array contents, so that the structure reflects the fact that it is now empty. Also change the test in nfs_pageio_do_add_request() to be more robust by checking whether or not the list is empty rather than relying on the value of pg_count.

Package Linux Kernel

Published 2024-03-25

Last modified 2025-03-17

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 4.0 and later are affected. Fixed in 5.4.124, 5.10.42, 5.12.9, 5.13 and their respective stable series.

Affected from

≥ 4.0

Fixed in

✓ 5.4.124 5.4.x ✓ 5.10.42 5.10.x ✓ 5.12.9 5.12.x ✓ 5.13

References

4 total

Kernel Git
https://git.kernel.org/stable/c/15ac6f14787649e8ebd75c142e2c5d2a243c8490

Patch
Kernel Git
https://git.kernel.org/stable/c/1fc5f4eb9d31268ac3ce152d74ad5501ad24ca3e

Patch
Kernel Git
https://git.kernel.org/stable/c/56517ab958b7c11030e626250c00b9b1a24b41eb

Patch
Kernel Git
https://git.kernel.org/stable/c/ee21cd3aa8548e0cbc8c67a80b62113aedd2d101

Patch

Details

CVE ID CVE-2021-47167

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-03-25

Modified 2025-03-17

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47167?

CVE-2021-47167 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.0 onward and has been patched in 5.4.124, 5.10.42, 5.12.9 and others. CVE-2021-47167 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47167?

CVE-2021-47167 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-47167?

Yes. CVE-2021-47167 has been patched. Fixed versions include 5.4.124, 5.10.42, 5.12.9 and others. If you are running Linux kernel 4.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47167 actively exploited?

No. CVE-2021-47167 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.