What’s Vulnerable › Vulnerabilities

CVE-2022-49774: KVM: x86/xen: Fix eventfd error handling in kvm_xen_eventfd_assign()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-01 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Fix eventfd error handling in kvm_xen_eventfd_assign() Should not call eventfd_ctx_put() in case of error. [Introduce new goto target instead. - Paolo]

Affected products

• Linux kernel: from 5.19 before 6.0.10; 6.1-rc1, 6.1-rc2, 6.1-rc3 — fixed in 6.0.10

How to fix

Upgrade to a fixed version: Linux kernel 6.0.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/7353633814f6e5b4899fb9ee1483709d6bb0e1cd
• https://git.kernel.org/stable/c/d76f46f47dfde220712d1420ee5dbc546c8fc674

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