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Vulnerabilities

Vulnerability · CVE-2022-49893

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is deleted any targets that have

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

Check this week

CVE-2022-49893 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 b9686e8c8e39d4072081ef078c04915ee51c8af4 <45d9fb4b758b9d602ee7776eb6754b0349946aad

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is deleted any targets that have been previously assigned to that region hold references to it. Trigger those references to drop by detaching all targets at unregister_region() time. Otherwise that region object will leak as userspace has lost the ability to detach targets once region sysfs is torn down.

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 b9686e8c8e39d4072081ef078c04915ee51c8af4 <45d9fb4b758b9d602ee7776eb6754b0349946aadb9686e8c8e39d4072081ef078c04915ee51c8af4 <45d9fb4b758b9d602ee7776eb6754b0349946aad

How to fix CVE-2022-49893

What to do

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

Should you patch?

CVE-2022-49893 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 b9686e8c8e39d4072081ef078c04915ee51c8af4 <45d9fb4b758b9d602ee7776eb6754b0349946aad b9686e8c8e39d4072081ef078c04915ee51c8af4 <45d9fb4b758b9d602ee7776eb6754b0349946aad. 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: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is deleted any targets that have been previously assigned to that region hold references to it. Trigger those references to drop by detaching all targets at unregister_region() time. Otherwise that region object will leak as userspace has lost the abil

  2. May 11, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is deleted any targets that have been previously assigned to that region hold references to it. Trigger those references to drop by detaching all targets at unregister_region() time. Otherwise that region object will leak as userspace has lost the abil

Sources

  • CVE.orgVulnerability recordCVE-2022-49893

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-12891

    In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix cxl_region leak, cleanup targets at region delete When a region is deleted any targets that have been previously assigned to that region hold references to it. Trigger those references to drop by

    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.