SB20251230145 - Memory leak in Linux kernel usb host driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230145
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2022-50809)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the xhci_alloc_dbc() function in drivers/usb/host/xhci-dbgcap.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
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
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1