CVE-2022-50440

MEDIUM EPSS 4.5%
Published Oct 1, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 1, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥3.2  –  <4.9.337
linuxlinux_kernel*≥4.10  –  <4.14.303
linuxlinux_kernel*≥4.15  –  <4.19.270
linuxlinux_kernel*≥4.20  –  <5.4.229
linuxlinux_kernel*≥5.5  –  <5.10.163
linuxlinux_kernel*≥5.11  –  <5.15.87
linuxlinux_kernel*≥5.16  –  <6.0.18
linuxlinux_kernel*≥6.1  –  <6.1.4

References 9

  • git.kernel.org https://git.kernel.org/stable/c/439cbbc1519547f9a7b483f0de33b556ebfec901
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4cf949c7fafe21e085a4ee386bb2dade9067316e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4d54d11b49860686331c58a00f733b16a93edfc4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/50d177f90b63ea4138560e500d92be5e4c928186
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/622d527decaac0eb65512acada935a0fdc1d0202
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6948e570f54f2044dd4da444b10471373a047eeb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6b4e70a428b5a11f56db94047b68e144529fe512
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/94b283341f9f3f0ed56a360533766377a01540e0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ee8d31836cbe7c26e207bfa0a4a726f0a25cfcf6
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/439cbbc1519547f9a7b483f0de33b556ebfec901
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4cf949c7fafe21e085a4ee386bb2dade9067316e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4d54d11b49860686331c58a00f733b16a93edfc4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/50d177f90b63ea4138560e500d92be5e4c928186
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/622d527decaac0eb65512acada935a0fdc1d0202
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6948e570f54f2044dd4da444b10471373a047eeb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6b4e70a428b5a11f56db94047b68e144529fe512
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/94b283341f9f3f0ed56a360533766377a01540e0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ee8d31836cbe7c26e207bfa0a4a726f0a25cfcf6
    Patch