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Vulnerabilities

Vulnerability · CVE-2022-49774

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 o

Published May 1, 2025 · catalog updated May 11, 2026 · Linux Linux

Check this week

CVE-2022-49774 is not in CISA KEV. FIRST estimates a 17.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
17.00%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 2fd6df2f2b47d4301b1ee0fe9d627d1c061a5988 <d76f46f47dfde220712d1420ee5dbc546c8fc674

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]

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux 2fd6df2f2b47d4301b1ee0fe9d627d1c061a5988 <d76f46f47dfde220712d1420ee5dbc546c8fc6742fd6df2f2b47d4301b1ee0fe9d627d1c061a5988 <d76f46f47dfde220712d1420ee5dbc546c8fc674

How to fix CVE-2022-49774

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2022-49774 is not in CISA KEV. FIRST estimates a 17.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Which versions are affected?

Compare what you have installed with Linux Linux 2fd6df2f2b47d4301b1ee0fe9d627d1c061a5988 <d76f46f47dfde220712d1420ee5dbc546c8fc674 2fd6df2f2b47d4301b1ee0fe9d627d1c061a5988 <d76f46f47dfde220712d1420ee5dbc546c8fc674. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 17.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 1, 2025 · EUVD

    Detected

    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]

  2. May 11, 2026 · EUVD

    Updated

    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]

Sources

  • CVE.orgVulnerability recordCVE-2022-49774

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-13003

    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]

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.