devlink: fix netns refcount leak in devlink_nl_cmd_reload() (Linux Linux)

CVE-2021-47514
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.24 % · percentile 15 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: devlink: fix netns refcount leak in devlink_nl_cmd_reload() While preparing my patch series adding netns refcount tracking, I spotted bugs in devlink_nl_cmd_reload() Some error paths forgot to release a refcount on a netns. To fix this, we can reduce the scope of get_net()/put_net() section around the call to devlink_reload().

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:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected ccdf07219da6bd1f43c6ddcde4c0e36993c7365a < 4b7e90672af8e0c78205db006f1b0a20ebd07f5f ; affected ccdf07219da6bd1f43c6ddcde4c0e36993c7365a < fe30b70ca84da9c4aca85c03ad86e7a9b89c5ded ; affected ccdf07219da6bd1f43c6ddcde4c0e36993c7365a < 4dbb0dad8e63fcd0b5a117c2861d2abe7ff5f186
Linux · Linuxaffected 5.10 ; unaffected 0 < 5.10 ; unaffected 5.10.85 ≤ 5.10.* ; unaffected 5.15.8 ≤ 5.15.* ; unaffected 5.16 ≤ *

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