SB2025100544 - Input validation error in Linux kernel usb host driver
Published: October 5, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100544
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) Input validation error (CVE-ID: CVE-2022-50470)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the xhci_free_virt_device() function in drivers/usb/host/xhci-mem.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/3bf860a41e0f2fcea0ac3aae8f7ef887a7994b70
- https://git.kernel.org/stable/c/5aed5b7c2430ce318a8e62f752f181e66f0d1053
- https://git.kernel.org/stable/c/5e4ce28ad907aa54f13b21d5f1dc490525957b0c
- https://git.kernel.org/stable/c/678d2cc2041cc6ce05030852dce9ad42719abcfc
- https://git.kernel.org/stable/c/8f1cd9633d1f21efc13e8fc75be8f2b6bb85e38c
- https://git.kernel.org/stable/c/c892a81c7424b4f6a660cb9c249d354ccf3afeca
- https://git.kernel.org/stable/c/cebbc8d335d6bcc1316584f779c08f80287c6af8
- https://git.kernel.org/stable/c/f0de39474078adef6ece7a183e34c15ce2c1d8d1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.298