What’s Vulnerable › Vulnerabilities

CVE-2024-40989: KVM: arm64: Disassociate vcpus from redistributor region on teardown

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-12 · updated 2026-08-04
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Disassociate vcpus from redistributor region on teardown When tearing down a redistributor region, make sure we don't have any dangling pointer to that region stored in a vcpu.

Affected products

• Linux kernel: from 5.13 before 6.1.96; from 6.2 before 6.6.36; from 6.7 before 6.9.7; 6.10-rc1, 6.10-rc2, 6.10-rc3, 6.10-rc4 — fixed in 6.1.96, 6.6.36, 6.9.7

How to fix

Upgrade to a fixed version: Linux kernel 6.1.96, 6.6.36, 6.9.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0d92e4a7ffd5c42b9fa864692f82476c0bf8bcc8
• https://git.kernel.org/stable/c/152b4123f21e6aff31cea01158176ad96a999c76
• https://git.kernel.org/stable/c/48bb62859d47c5c4197a8c01128d0fa4f46ee58c
• https://git.kernel.org/stable/c/68df4fc449fcc24347209e500ce26d5816705a77
• https://git.kernel.org/stable/c/0d92e4a7ffd5c42b9fa864692f82476c0bf8bcc8
• https://git.kernel.org/stable/c/152b4123f21e6aff31cea01158176ad96a999c76
• https://git.kernel.org/stable/c/48bb62859d47c5c4197a8c01128d0fa4f46ee58c
• https://git.kernel.org/stable/c/68df4fc449fcc24347209e500ce26d5816705a77
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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