KVM: arm64: Eagerly init vgic dist/redist on vgic creation (Linux Linux)

CVE-2026-43351
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.12 % · percentile 2 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Eagerly init vgic dist/redist on vgic creation If vgic_allocate_private_irqs_locked() fails for any odd reason, we exit kvm_vgic_create() early, leaving dist->rd_regions uninitialised. kvm_vgic_dist_destroy() then comes along and walks into the weeds trying to free the RDs. Got to love this stuff. Solve it by moving all the static initialisation early, and make sure that if we fail halfway, we're in a reasonable shape to perform the rest of the teardown. While at it, reset the vgic model on failure, just in case...

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 b3aa9283c0c505b5cfd25f7d6cfd720de2adc807 < b7493f48c3dba75674a4ee505b4afa8fe5102457 ; affected b3aa9283c0c505b5cfd25f7d6cfd720de2adc807 < a24f1d80fbcdbf8b2a7044a00fa12b3972b4c31c ; affected b3aa9283c0c505b5cfd25f7d6cfd720de2adc807 < ac6769c8f948dff33265c50e524aebf9aa6f1be0
Linux · Linuxaffected 6.14 ; unaffected 0 < 6.14 ; unaffected 6.18.19 ≤ 6.18.* ; unaffected 6.19.9 ≤ 6.19.* ; unaffected 7.0 ≤ *

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