Local system crash via invalid surface identifier
Published Nov 12, 2025 · Updated Nov 12, 2025
NULL pointer dereference in the Linux kernel vmwgfx driver allows local users to crash the system through a crafted SVGA command. vmw_cmd_res_check accepts SVGA3D_INVALID_ID as a valid no-surface value, but the cursor snooper dereferences the resulting null resource without verifying that a surface object exists. The path requires local low-privilege access and an active vmwgfx driver; successful exploitation interrupts the host through a kernel crash.
Summary
What happened
NULL pointer dereference in the Linux kernel vmwgfx driver allows local users to crash the system through a crafted SVGA command. vmw_cmd_res_check accepts SVGA3D_INVALID_ID as a valid no-surface value, but the cursor snooper dereferences the resulting null resource without verifying that a surface object exists. The path requires local low-privilege access and an active vmwgfx driver; successful exploitation interrupts the host through a kernel crash.
The record
- CVE
- CVE-2025-40110
- Published
- Nov 12, 2025
- Updated
- Nov 12, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 12, 2025CVE publishedPublication date reported by the CVE source.
- Nov 12, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=3.8
- Affected versionversion=c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 <13c9e4ed125e19484234c960efe5ac9c55119523
- Affected versionversion=c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 <299cfb5a7deabdf9ecd30071755672af0aced5eb
- Affected versionversion=c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 <5ac2c0279053a2c5265d46903432fb26ae2d0da2
- Affected versionversion=c0951b797e7d0f2c6b0df2c0e18185c72d0cf1a1 <b6fca0a07989f361ceda27cb2d09c555d4d4a964
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
Public exploit references
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Technologies
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Your stack
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