Service interruption via leaked pinned DMA buffers
Published May 1, 2025 · Updated May 11, 2026
Resource leak in Linux kernel 6.14 through 6.14.3 allows local users to interrupt service through virtio DRM framebuffer setup errors. The virtio_gpu_plane_prepare_fb function pins an imported DMA buffer before allocating its fence, then returns on allocation failure without unpinning the buffer. Reachability requires local access to a virtio GPU path and an imported DMA buffer; repeated failures retain pinned resources and can interrupt service.
Summary
What happened
Resource leak in Linux kernel 6.14 through 6.14.3 allows local users to interrupt service through virtio DRM framebuffer setup errors. The virtio_gpu_plane_prepare_fb function pins an imported DMA buffer before allocating its fence, then returns on allocation failure without unpinning the buffer. Reachability requires local access to a virtio GPU path and an imported DMA buffer; repeated failures retain pinned resources and can interrupt service.
The record
- CVE
- CVE-2025-37762
- Published
- May 1, 2025
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 1, 2025CVE publishedPublication date reported by the CVE source.
- May 11, 2026Record 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=4a696a2ee646ea6f24c28b3624175a7b35482c52 <395cc80051f8da267b27496a4029dd931a198855
- Affected versionversion=4a696a2ee646ea6f24c28b3624175a7b35482c52 <fe983e925bf7062d7b975357afcbc77bb7f354d8
- Affected versionversion=6.14
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Technologies
Your stack
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Your stack
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