What’s Vulnerable › Vulnerabilities

CVE-2022-50809: xhci: dbc: Fix memory leak in xhci_alloc_dbc()

• Severity: unknown
• 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: 2025-12-30 · updated 2026-06-17

Description

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.

Affected products

• Linux kernel: from 5.15.58 before 5.15.75; 5.18 — fixed in 5.15.75, 6.1

How to fix

Upgrade to a fixed version: Linux kernel 5.15.75, 6.1. Check the vendor advisory for mitigations.

References

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

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