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CVE-2022-50440
drm/vmwgfx: Validate the box size for the snooped cursor
Description

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate the box size for the snooped cursor Invalid userspace dma surface copies could potentially overflow the memcpy from the surface to the snooped image leading to crashes. To fix it the dimensions of the copybox have to be validated against the expected size of the snooped cursor.

INFO

Published Date :

Oct. 1, 2025, 12:15 p.m.

Last Modified :

Oct. 2, 2025, 7:12 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2022-50440 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Validate box size in vmwgfx to prevent buffer overflows and crashes.
  • Apply the Linux kernel patch for vmwgfx.
  • Validate copybox dimensions against snooped cursor size.
  • Update the Linux kernel to the patched version.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-50440.

URL Resource
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
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-50440 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-50440 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-50440 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2022-50440 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Oct. 01, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate the box size for the snooped cursor Invalid userspace dma surface copies could potentially overflow the memcpy from the surface to the snooped image leading to crashes. To fix it the dimensions of the copybox have to be validated against the expected size of the snooped cursor.
    Added Reference https://git.kernel.org/stable/c/439cbbc1519547f9a7b483f0de33b556ebfec901
    Added Reference https://git.kernel.org/stable/c/4cf949c7fafe21e085a4ee386bb2dade9067316e
    Added Reference https://git.kernel.org/stable/c/4d54d11b49860686331c58a00f733b16a93edfc4
    Added Reference https://git.kernel.org/stable/c/50d177f90b63ea4138560e500d92be5e4c928186
    Added Reference https://git.kernel.org/stable/c/622d527decaac0eb65512acada935a0fdc1d0202
    Added Reference https://git.kernel.org/stable/c/6948e570f54f2044dd4da444b10471373a047eeb
    Added Reference https://git.kernel.org/stable/c/6b4e70a428b5a11f56db94047b68e144529fe512
    Added Reference https://git.kernel.org/stable/c/94b283341f9f3f0ed56a360533766377a01540e0
    Added Reference https://git.kernel.org/stable/c/ee8d31836cbe7c26e207bfa0a4a726f0a25cfcf6
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.