xen/evtchn: avoid WARN() when unbinding an event channel (Linux Linux)

CVE-2024-27067
MEDIUM 5.5

At a glance

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

Description

In the Linux kernel, the following vulnerability has been resolved: xen/evtchn: avoid WARN() when unbinding an event channel When unbinding a user event channel, the related handler might be called a last time in case the kernel was built with CONFIG_DEBUG_SHIRQ. This might cause a WARN() in the handler. Avoid that by adding an "unbinding" flag to struct user_event which will short circuit the handler.

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 3c8f5965a99397368d3762a9814a21a3e442e1a4 < 99e425032c6ec13584d3cd33846e0c7307501b47 ; affected 9e90e58c11b74c2bddac4b2702cf79d36b981278 < 35485dad6e28f9b17884764d4692b1655cb848d0 ; affected 9e90e58c11b74c2bddac4b2702cf79d36b981278 < 9e2d4b58c1da48a32905802aaeadba7084b46895 ; affected 9e90e58c11b74c2bddac4b2702cf79d36b981278 < 51c23bd691c0f1fb95b29731c356c6fd69925d17 ; affected 6.6.19 < 6.6.23
Linux · Linuxaffected 6.7 ; unaffected 0 < 6.7 ; unaffected 6.6.23 ≤ 6.6.* ; unaffected 6.7.11 ≤ 6.7.* ; unaffected 6.8.2 ≤ 6.8.* ; unaffected 6.9 ≤ *

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