Kernel taint via spurious Xe timeout warning
Published Sep 24, 2026 · Updated Sep 24, 2026
Improper timeout handling in the Linux kernel 6.17 Xe driver causes a warning and kernel taint during teardown of an already-wedged device. In guc_exec_queue_timedout_job(), killed queues skipped guc_submit_hint_wedged(), so the handler left wedged false and misclassified an expected GSC proxy timeout. The condition requires an Xe device already wedged with GuC CT stopped, followed by driver rebind; the disclosed consequence is a warning and taint, not a crash.
Summary
What happened
Improper timeout handling in the Linux kernel 6.17 Xe driver causes a warning and kernel taint during teardown of an already-wedged device. In guc_exec_queue_timedout_job(), killed queues skipped guc_submit_hint_wedged(), so the handler left wedged false and misclassified an expected GSC proxy timeout. The condition requires an Xe device already wedged with GuC CT stopped, followed by driver rebind; the disclosed consequence is a warning and taint, not a crash.
The record
- CVE
- CVE-2026-93248
- Published
- Sep 24, 2026
- Updated
- Sep 24, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 24, 2026CVE publishedPublication date reported by the CVE source.
- Sep 24, 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=5a2f117a80c207372513ca8964eeb178874f4990 <13087ad7817e6e5f210064518bfc4d6d58a9c2f3
- Affected versionversion=5a2f117a80c207372513ca8964eeb178874f4990 <24d81b72992006f9c390f1fc85c7f991e6d06fd6
- Affected versionversion=6.17
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What is affected?
Published CVSS scores
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Attacks
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Activity data is delayed. The latest report is Sep 28, 2026.
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Public exploit references
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