Kernel crash via unchecked AMDGPU version pointer
Published May 8, 2026 · Updated May 8, 2026
NULL pointer dereference in Linux Kernel 6.18.16 through 6.18.18 and 6.19.6 through 6.19.8 allows attackers to crash the kernel. During teardown after unsupported AMD GPU block initialization fails, the clock- and power-gating helpers dereference a NULL IP block version pointer. The public record does not establish an attacker-controlled path to the required initialization failure, so exploitability beyond a failure-induced kernel crash remains undisclosed.
Summary
What happened
NULL pointer dereference in Linux Kernel 6.18.16 through 6.18.18 and 6.19.6 through 6.19.8 allows attackers to crash the kernel. During teardown after unsupported AMD GPU block initialization fails, the clock- and power-gating helpers dereference a NULL IP block version pointer. The public record does not establish an attacker-controlled path to the required initialization failure, so exploitability beyond a failure-induced kernel crash remains undisclosed.
The record
- CVE
- CVE-2026-43369
- Published
- May 8, 2026
- Updated
- May 8, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- May 8, 2026CVE publishedPublication date reported by the CVE source.
- May 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=39fc2bc4da0082c226cbee331f0a5d44db3997da <062ea905fff7756b2e87143ffccaece5cdb44267
- Affected versionversion=6.18.16 <6.18.19
- Affected versionversion=6.19.6 <6.19.9
- Affected versionversion=6d7ac4a0ebb6b7bc885274aa8b2bd9971f07013c <767cd24d3c4ae847688877def4891943f6611ecd
- Affected versionversion=fc58ef30e0a1524ce72a8e873d773ba3b0830c7d <43025c941aced9a9009f9ff20eea4eb78c61deb8
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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