CVE-2021-47498
Vulnerability Summary
Timeline
Description
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.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Trends
Current EPSS score: 0.21%• Percentile: 11%
Affected Systems
- debian•linux
< 5.10.244-1 | < 5.14.16-1 | < 5.14.16-1 | < 5.14.16-1
- ubuntu•linux
all
- ubuntu•linux-allwinner-5.19
all
- ubuntu•linux-aws
all
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.11
all
- ubuntu•linux-aws-5.13
all
- ubuntu•linux-aws-5.19
all
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-aws-5.4
all
- ubuntu•linux-aws-5.8
all
- ubuntu•linux-aws-6.2
all
- ubuntu•linux-aws-fips
all
- ubuntu•linux-aws-hwe
all
- ubuntu•linux-azure
all | all
- ubuntu•linux-azure-4.15
all
- ubuntu•linux-azure-5.11
all
- ubuntu•linux-azure-5.13
all
- ubuntu•linux-azure-5.19
all
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-5.4
all
- ubuntu•linux-azure-5.8
all
- ubuntu•linux-azure-6.2
all
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fde-5.15
< 5.15.0-1114.123~20.04.1
- ubuntu•linux-azure-fde-5.19
all
- ubuntu•linux-azure-fde-6.2
all
- ubuntu•linux-azure-fips
all
- ubuntu•linux-bluefield
all | all
- ubuntu•linux-fips
all
- ubuntu•linux-gcp
all | all
- ubuntu•linux-gcp-4.15
all
- ubuntu•linux-gcp-5.11
all
- ubuntu•linux-gcp-5.13
all
- ubuntu•linux-gcp-5.19
all
- ubuntu•linux-gcp-5.3
all
- ubuntu•linux-gcp-5.4
all
- ubuntu•linux-gcp-5.8
all
- ubuntu•linux-gcp-6.2
all
- ubuntu•linux-gcp-fips
all
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
all
- ubuntu•linux-gke-5.15
all
- ubuntu•linux-gke-5.4
all
- ubuntu•linux-gkeop
all
- ubuntu•linux-gkeop-5.4
all
- ubuntu•linux-hwe
all | all
- ubuntu•linux-hwe-5.11
all
- ubuntu•linux-hwe-5.13
all
Showing first 50 affected entries in server-rendered view.
References (8)
- https://git.kernel.org/stable/c/8050652810bf38241edec8717393d2446e8036f1
- https://git.kernel.org/stable/c/8ca9745efe3528feb06ca4e117188038eea2d351
- https://git.kernel.org/stable/c/b4459b11e84092658fa195a2587aff3b9637f0e7
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://ubuntu.com/security/CVE-2021-47498
- https://www.cve.org/CVERecord?id=CVE-2021-47498
- https://git.kernel.org/linus/b4459b11e84092658fa195a2587aff3b9637f0e7
- https://security-tracker.debian.org/tracker/CVE-2021-47498