dmaengine: idxd: fix wq cleanup of WQCFG registers (Linux Linux)

CVE-2021-46917
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.22 % · percentile 13 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix wq cleanup of WQCFG registers A pre-release silicon erratum workaround where wq reset does not clear WQCFG registers was leaked into upstream code. Use wq reset command instead of blasting the MMIO region. This also address an issue where we clobber registers in future devices.

Weaknesses (CWE)

  • CWE-668 — Exposure of Resource to Wrong Sphere

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected da32b28c95a79e399e18c03f8178f41aec9c66e4 < e5eb9757fe4c2392e069246ae78badc573af1833 ; affected da32b28c95a79e399e18c03f8178f41aec9c66e4 < f7dc8f5619165e1fa3383d0c2519f502d9e2a1a9 ; affected da32b28c95a79e399e18c03f8178f41aec9c66e4 < ea9aadc06a9f10ad20a90edc0a484f1147d88a7a ; affected 2a2df2bd10de44c3804661ed15157817c12d6291 ; affected 5.7.10 < 5.8
Linux · Linuxaffected 5.8 ; unaffected 0 < 5.8 ; unaffected 5.10.32 ≤ 5.10.* ; unaffected 5.11.16 ≤ 5.11.* ; unaffected 5.12 ≤ *

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