System crash via unsynchronized GPU interrupt
Published Apr 3, 2026 · Updated Apr 3, 2026
Race condition in the Imagination DRM driver in Linux Kernel 6.8 through 7.0-rc4 allows local users to crash the kernel. The runtime PM suspend callback powers down the GPU without synchronizing an in-progress IRQ handler, which can then access suspended GPU registers and trigger an asynchronous SError. Exploitation requires local low-privileged access, the Imagination GPU driver, and a timing window in which an IRQ handler remains active on another CPU core during runtime suspension.
Summary
What happened
Race condition in the Imagination DRM driver in Linux Kernel 6.8 through 7.0-rc4 allows local users to crash the kernel. The runtime PM suspend callback powers down the GPU without synchronizing an in-progress IRQ handler, which can then access suspended GPU registers and trigger an asynchronous SError. Exploitation requires local low-privileged access, the Imagination GPU driver, and a timing window in which an IRQ handler remains active on another CPU core during runtime suspension.
The record
- CVE
- CVE-2026-23469
- Published
- Apr 3, 2026
- Updated
- Apr 3, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- CWE-362, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 3, 2026CVE publishedPublication date reported by the CVE source.
- Apr 3, 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=6.8
- Affected versionversion=cc1aeedb98ad347c06ff59e991b2f94dfb4c565d <2d7f05cddf4c268cc36256a2476946041dbdd36d
- Affected versionversion=cc1aeedb98ad347c06ff59e991b2f94dfb4c565d <772f3653eef50ea7cf721b05d8e275f93bc460f3
- Affected versionversion=cc1aeedb98ad347c06ff59e991b2f94dfb4c565d <8e0c15e426a056b9fb604cf87a1dfdec4d61e407
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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