CVE-2022-50440 Details
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.
A vulnerability in the Linux kernel's VMWGFX driver can lead to crashes by allowing invalid userspace DMA surface copies to overflow the memory copy operation from the surface to the snooped image. This issue arises because the box size for the snooped cursor is not properly validated, potentially causing a buffer overflow. The vulnerability affects several versions of the Linux kernel.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for downloading the patched version are available on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/439cbbc1519547f9a7b483f0de33b556ebfec901 | kernel.org | Patch |
| https://git.kernel.org/stable/c/4cf949c7fafe21e085a4ee386bb2dade9067316e | kernel.org | Patch |
| https://git.kernel.org/stable/c/4d54d11b49860686331c58a00f733b16a93edfc4 | kernel.org | Patch |
| https://git.kernel.org/stable/c/50d177f90b63ea4138560e500d92be5e4c928186 | kernel.org | Patch |
| https://git.kernel.org/stable/c/622d527decaac0eb65512acada935a0fdc1d0202 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6948e570f54f2044dd4da444b10471373a047eeb | kernel.org | Patch |
| https://git.kernel.org/stable/c/6b4e70a428b5a11f56db94047b68e144529fe512 | kernel.org | Patch |
| https://git.kernel.org/stable/c/94b283341f9f3f0ed56a360533766377a01540e0 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ee8d31836cbe7c26e207bfa0a4a726f0a25cfcf6 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 3.2, < 4.9.337 >= 4.10, < 4.14.303 >= 4.15, < 4.19.270 >= 4.20, < 5.4.229 >= 5.5, < 5.10.163 >= 5.11, < 5.15.87 >= 5.16, < 6.0.18 >= 6.1, < 6.1.4 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 4, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jan 21, 2026 | Initial Analysis | [email protected] |
| Oct 1, 2025 | New CVE Received | kernel.org |