PT-2026-39012 · Linux · Linux Kernel

CVE-2026-43351 · Published 2026-05-08 · Updated 2026-07-21

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description In the KVM arm64 component, a failure in the vgic allocate private irqs locked() function during vgic creation can lead to dist->rd regions remaining uninitialized. Consequently, when kvm vgic dist destroy() is called, it attempts to free these uninitialized redistribution regions, leading to a system crash or unstable behavior.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2026-43351

OPENSUSE-SU-2026:21388-1

SUSE-SU-2026:22742-1

SUSE-SU-2026:22769-1

SUSE-SU-2026:22812-1

SUSE-SU-2026:22835-1

Affected Products

Linux Kernel

References · 566

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43351.json · Exploit
• https://osv.dev/vulnerability/openSUSE-SU-2026:21388-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43351 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43351 · Security Note
• https://git.kernel.org/stable/c/a24f1d80fbcdbf8b2a7044a00fa12b3972b4c31c · Patch
• https://osv.dev/vulnerability/CVE-2026-43351 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-43351 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43351 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:22835-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43351 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-43351 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:22812-1 · Vendor Advisory
• https://git.kernel.org/stable/c/ac6769c8f948dff33265c50e524aebf9aa6f1be0 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:22742-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43351 · Vendor Advisory