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Vulnerabilities

Vulnerability · CVE-2022-50809

In the Linux kernel, the following vulnerability has been resolved: xhci: dbc: Fix memory leak in xhci_alloc_dbc() If DbC is already in use, then the allocated memory for the xhci_

Published Dec 30, 2025 · catalog updated May 23, 2026 · Linux Linux

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2022-50809. EPSS is 0.24%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.24%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 534675942e901959b5d8dc11ea526c4e48817d8e <69e67c804d09a6b1bcda1f4f242f151f813eeb4a

In the Linux kernel, the following vulnerability has been resolved: xhci: dbc: Fix memory leak in xhci_alloc_dbc() If DbC is already in use, then the allocated memory for the xhci_dbc struct doesn't get freed before returning NULL, which leads to a memleak.

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 534675942e901959b5d8dc11ea526c4e48817d8e <69e67c804d09a6b1bcda1f4f242f151f813eeb4a534675942e901959b5d8dc11ea526c4e48817d8e <69e67c804d09a6b1bcda1f4f242f151f813eeb4a

How to fix CVE-2022-50809

  • Upgrade

    CVE-2022-50809 lists a fix boundary at 69e67c804d09a6b1bcda1f4f242f151f813eeb4a. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 534675942e901959b5d8dc11ea526c4e48817d8e <69e67c804d09a6b1bcda1f4f242f151f813eeb4a

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

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

Should you patch?

No confirmed exploitation is on record for CVE-2022-50809. EPSS is 0.24%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux 534675942e901959b5d8dc11ea526c4e48817d8e <69e67c804d09a6b1bcda1f4f242f151f813eeb4a 534675942e901959b5d8dc11ea526c4e48817d8e <69e67c804d09a6b1bcda1f4f242f151f813eeb4a. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.24%. 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. Dec 30, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: xhci: dbc: Fix memory leak in xhci_alloc_dbc() If DbC is already in use, then the allocated memory for the xhci_dbc struct doesn't get freed before returning NULL, which leads to a memleak.

  2. May 23, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: xhci: dbc: Fix memory leak in xhci_alloc_dbc() If DbC is already in use, then the allocated memory for the xhci_dbc struct doesn't get freed before returning NULL, which leads to a memleak.

Sources

  • CVE.orgVulnerability recordCVE-2022-50809

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-50809

    30-day exploitation probability 0.24%

    first.org
  • EUVDVulnerability recordEUVD-2022-55889

    In the Linux kernel, the following vulnerability has been resolved: xhci: dbc: Fix memory leak in xhci_alloc_dbc() If DbC is already in use, then the allocated memory for the xhci_dbc struct doesn't get freed before returning NULL, which leads to a memleak.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 1, 2026
  • CVE.orgOct 29, 2026
  • EUVDOct 29, 2026