Kernel panic via stale KIQ readiness state
Published Aug 10, 2026 · Updated Aug 10, 2026
A NULL-pointer dereference in Linux before 7.1.6 causes a kernel panic when amdgpu driver loading fails after MES initialization. When MES initialization fails, the driver leaves its MES-owned KIQ ring marked ready, and cleanup reaches a register-wait path through an invalid ring state. The condition requires a MES initialization failure on a relevant AMD GPU; public records do not establish an attacker-controlled trigger.
Summary
What happened
A NULL-pointer dereference in Linux before 7.1.6 causes a kernel panic when amdgpu driver loading fails after MES initialization. When MES initialization fails, the driver leaves its MES-owned KIQ ring marked ready, and cleanup reaches a register-wait path through an invalid ring state. The condition requires a MES initialization failure on a relevant AMD GPU; public records do not establish an attacker-controlled trigger.
The record
- CVE
- CVE-2026-68105
- Published
- Aug 10, 2026
- Updated
- Aug 10, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Aug 10, 2026CVE publishedPublication date reported by the CVE source.
- Aug 10, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <7.1.6
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5bc93f907bad7e076d814664dfab8fc230efca3d
- Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a279bd143b3c184358b658e43a057e31ee8c4de5
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
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Public exploit references
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Technologies
Your stack
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Your stack
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