What’s Vulnerable › Vulnerabilities

CVE-2022-39189

• 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: 2022-09-02 · updated 2026-06-17

Description

An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED situations.

Affected products

• Linux kernel: from 4.16 before 5.4.244; from 5.5.0 before 5.10.180; from 5.11 before 5.15.60; from 5.16 before 5.18.17 — fixed in 5.10.180, 5.15.60, 5.18.17, 5.4.244
• NetApp Hci Baseboard Management Controller: h300s, h410c, h410s, h500s, h700s

How to fix

Upgrade to a fixed version: Linux kernel 5.10.180, 5.15.60, 5.18.17, 5.4.244. Check the vendor advisory for mitigations.

References

• https://bugs.chromium.org/p/project-zero/issues/detail?id=2309
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6cd88243c7e03845a450795e134b488fc2afb736
• https://github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736
• https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
• https://security.netapp.com/advisory/ntap-20230214-0007/
• https://www.debian.org/security/2023/dsa-5480
• https://bugs.chromium.org/p/project-zero/issues/detail?id=2309
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.17
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6cd88243c7e03845a450795e134b488fc2afb736
• https://github.com/torvalds/linux/commit/6cd88243c7e03845a450795e134b488fc2afb736
• https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html

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