What is CVE-2021-46920?

CVE-2021-46920 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2021-46920 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-46920?

CVE-2021-46920 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:H/A:N.

Is there a patch available for CVE-2021-46920?

No patch is currently available for CVE-2021-46920. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-46920 actively exploited?

CVE-2021-46920 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-46920

Medium

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix clobbering of SWERR overflow bit on writeback Current code blindly writes over the SWERR and the OVERFLOW bits. Write back the bits actually read instead so the driver avoids clobbering the OVERFLOW bit that comes after the register is read.

Package Linux Kernel

Published 2024-02-27

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

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

High

Availability

None

Vector string

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

References

The following references provide additional information about CVE-2021-46920 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/02981a44a0e402089775416371bd2e0c935685f8
Patch
Kernel patch commit
https://git.kernel.org/stable/c/a5ad12d5d69c63af289a37f05187a0c6fe93553d
Patch
Kernel patch commit
https://git.kernel.org/stable/c/ea941ac294d75d0ace50797aebf0056f6f8f7a7f
Patch

Details

CVE ID CVE-2021-46920

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-27

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-46920?

CVE-2021-46920 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2021-46920 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-46920?

CVE-2021-46920 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:H/A:N.
Is there a patch available for CVE-2021-46920?

No patch is currently available for CVE-2021-46920. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-46920 actively exploited?

No — CVE-2021-46920 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.