SB20251001156 - Input validation error in Linux kernel drm vmwgfx driver
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001156
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-2022-50440)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the vmw_kms_cursor_snoop() function in drivers/gpu/drm/vmwgfx/vmwgfx_kms.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/439cbbc1519547f9a7b483f0de33b556ebfec901
- https://git.kernel.org/stable/c/4cf949c7fafe21e085a4ee386bb2dade9067316e
- https://git.kernel.org/stable/c/4d54d11b49860686331c58a00f733b16a93edfc4
- https://git.kernel.org/stable/c/50d177f90b63ea4138560e500d92be5e4c928186
- https://git.kernel.org/stable/c/622d527decaac0eb65512acada935a0fdc1d0202
- https://git.kernel.org/stable/c/6948e570f54f2044dd4da444b10471373a047eeb
- https://git.kernel.org/stable/c/6b4e70a428b5a11f56db94047b68e144529fe512
- https://git.kernel.org/stable/c/94b283341f9f3f0ed56a360533766377a01540e0
- https://git.kernel.org/stable/c/ee8d31836cbe7c26e207bfa0a4a726f0a25cfcf6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.337