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CVE-2022-50809

11
FAUCET Score

CVE-2022-50809 is a memory leak vulnerability in the Linux kernel's xHCI Debug Capability (DbC) driver. Specifically, if DbC is already in use, the allocated memory for the xhci_dbc structure is not freed, leading to a memory leak. This vulnerability has no assigned CVSS score, a very low EPSS score, and a FAUCET Risk Score of 7/100, indicating low severity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.15.58, < 5.15.75CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
10.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15

Social Chatter

Media Mentions

No media coverage found for this CVE.

Remediation

Vendor Patches (4)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-50809Low

kernel: xhci: dbc: Fix memory leak in xhci_alloc_dbc()

Dec 30, 2025

References

git.kernel.org / stable/c/103b459590e1eb4d80b02761eb36c7cae1d9b58e
git.kernel.org / stable/c/116d6a6964986ea7eb516daa36128d270f1f248d
git.kernel.org / stable/c/69e67c804d09a6b1bcda1f4f242f151f813eeb4a
git.kernel.org / stable/c/d591b32e519603524a35b172156db71df9116902