What is CVE-2021-47498?

CVE-2021-47498 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2024-05-22.

How severe is CVE-2021-47498?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-47498 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linux

CVE-2021-47498

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.

EPSS: 0.002 (11.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 7b17c2f7292ba1f3f98dae3f7077f9e569653276, 4.10, 0
Linux Linux_kernel — versions 5.15

Public proof-of-concept exploits

w4zu/Debian_

References

Frequently asked questions

What is CVE-2021-47498?: CVE-2021-47498 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2024-05-22.
How severe is CVE-2021-47498?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-47498 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.