rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink() (Linux Linux)

CVE-2022-48742
HIGH 7.8

At a glance

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

Description

In the Linux kernel, the following vulnerability has been resolved: rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink() While looking at one unrelated syzbot bug, I found the replay logic in __rtnl_newlink() to potentially trigger use-after-free. It is better to clear master_dev and m_ops inside the loop, in case we have to replay it.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected ba7d49b1f0f8e5f24294a880ed576964059af5ef < 2cf180360d66bd657e606c1217e0e668e6faa303 ; affected ba7d49b1f0f8e5f24294a880ed576964059af5ef < 7d9211678c0f0624f74cdff36117ab8316697bb8 ; affected ba7d49b1f0f8e5f24294a880ed576964059af5ef < a01e60a1ec6bef9be471fb7182a33c6d6f124e93 ; affected ba7d49b1f0f8e5f24294a880ed576964059af5ef < bd43771ee9759dd9dfae946bff190e2c5a120de5 ; affected ba7d49b1f0f8e5f24294a880ed576964059af5ef < 3bbe2019dd12b8d13671ee6cda055d49637b4c39 ; affected ba7d49b1f0f8e5f24294a880ed576964059af5ef < def5e7070079b2a214b3b1a2fbec623e6fbfe34a
Linux · Linuxaffected 3.14 ; unaffected 0 < 3.14 ; unaffected 4.9.300 ≤ 4.9.* ; unaffected 4.14.265 ≤ 4.14.* ; unaffected 4.19.228 ≤ 4.19.* ; unaffected 5.4.177 ≤ 5.4.*

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