dm rq: don't queue request to blk-mq during DM suspend (Linux Linux)

CVE-2021-47498
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.21 % · percentile 11 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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.

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 7b17c2f7292ba1f3f98dae3f7077f9e569653276 < 8050652810bf38241edec8717393d2446e8036f1 ; affected 7b17c2f7292ba1f3f98dae3f7077f9e569653276 < 8ca9745efe3528feb06ca4e117188038eea2d351 ; affected 7b17c2f7292ba1f3f98dae3f7077f9e569653276 < b4459b11e84092658fa195a2587aff3b9637f0e7
Linux · Linuxaffected 4.10 ; unaffected 0 < 4.10 ; unaffected 5.10.241 ≤ 5.10.* ; unaffected 5.14.14 ≤ 5.14.* ; unaffected 5.15 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD