What is CVE-2021-47498?

CVE-2021-47498 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.10 onward and patched in 5.10.241, 5.14.14 and 5.15. CVE-2021-47498 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47498?

CVE-2021-47498 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-2021-47498?

Yes, CVE-2021-47498 has been patched. Fixed versions include 5.10.241, 5.14.14 and 5.15. If you are running Linux kernel 4.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-47498 actively exploited?

CVE-2021-47498 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47498

Medium

In the Linux kernel, the following vulnerability has been resolved: dm rq: don't queue request to blk-mq during DM suspend DM uses blk-mq's quiesce/unquiesce to stop/start device mapper queue. But blk-mq's unquiesce may come from outside events, such as elevator switch, updating nr_requests or others, and request may come during suspend, so simply ask for blk-mq to requeue it. Fixes one kernel panic issue when running updating nr_requests and dm-mpath suspend/resume stress test.

Package Linux Kernel

Published 2024-05-22

Last modified 2025-11-03

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 4.10 and later are affected. Fixed in 5.10.241, 5.14.14, 5.15 and their respective stable series.

Affected from

≥ 4.10

Fixed in

✓ 5.10.241 5.10.x ✓ 5.14.14 5.14.x ✓ 5.15

References

4 total

Kernel Git
https://git.kernel.org/stable/c/8ca9745efe3528feb06ca4e117188038eea2d351

Patch
Kernel Git
https://git.kernel.org/stable/c/b4459b11e84092658fa195a2587aff3b9637f0e7

Patch
Kernel Git
https://git.kernel.org/stable/c/8050652810bf38241edec8717393d2446e8036f1
Debian Security
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

Details

CVE ID CVE-2021-47498

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-05-22

Modified 2025-11-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-47498?

CVE-2021-47498 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.10 onward and has been patched in 5.10.241, 5.14.14 and 5.15. CVE-2021-47498 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47498?

CVE-2021-47498 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-2021-47498?

Yes. CVE-2021-47498 has been patched. Fixed versions include 5.10.241, 5.14.14 and 5.15. If you are running Linux kernel 4.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-47498 actively exploited?

No. CVE-2021-47498 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.