Riskcovery

CVE-2026-43351

KVM: arm64: Eagerly init vgic dist/redist on vgic creation

State
Published
Severity
Not scored
Published
May 8, 2026
Updated
May 11, 2026
Reserved
May 1, 2026

Read the record on cve.org

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...

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • b3aa9283c0c505b5cfd25f7d6cfd720de2adc807 to before b7493f48c3dba75674a4ee505b4afa8fe5102457Affected
  • b3aa9283c0c505b5cfd25f7d6cfd720de2adc807 to before a24f1d80fbcdbf8b2a7044a00fa12b3972b4c31cAffected
  • b3aa9283c0c505b5cfd25f7d6cfd720de2adc807 to before ac6769c8f948dff33265c50e524aebf9aa6f1be0Affected
LinuxLinux
  • 6.14Affected
  • before 6.14Not affected
  • 6.18.19 through 6.18.*Not affected
  • 6.19.9 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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