GPU page fault via stale partition state
Published Dec 16, 2025 · Updated Dec 16, 2025
An out-of-bounds access in Linux kernel amdgpu allows attackers to trigger a GPU page fault after PF-passthrough hibernation. Resume leaves the compute-partition registers unrestored, so the command processor uses the wrong stride when accessing the MQD buffer object. The flaw requires an AMD PF-passthrough environment, a hibernate-and-resume cycle, and a GPU workload; the bounded consequence is a GPU page fault.
Summary
What happened
An out-of-bounds access in Linux kernel amdgpu allows attackers to trigger a GPU page fault after PF-passthrough hibernation. Resume leaves the compute-partition registers unrestored, so the command processor uses the wrong stride when accessing the MQD buffer object. The flaw requires an AMD PF-passthrough environment, a hibernate-and-resume cycle, and a GPU workload; the bounded consequence is a GPU page fault.
The record
- CVE
- CVE-2025-68230
- Published
- Dec 16, 2025
- Updated
- Dec 16, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1499.004
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Dec 16, 2025CVE publishedPublication date reported by the CVE source.
- Dec 16, 2025Record updatedLatest update available in the CVE record.
Exploitability
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Is a vulnerable build present?
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- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a45d6359eefb41e08d374a3260b10bff5626823b
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <eb6e7f520d6efa4d4ebf1671455abe4a681f7a05
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <eef72d856f978955e633c270abb1f7ec7b61c6d2
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What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
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Technologies
Your stack
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