CVE-2022-50440

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-10-01 12:15

Updated : 2026-01-21 21:38

NVD link : CVE-2022-50440

Mitre link : CVE-2022-50440

CVE.ORG link : CVE-2022-50440

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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