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CVE-2026-43237 is a use-after-free vulnerability in the Linux kernel AMDGPU DRM driver involving amdgpu_gem_va_ioctl and GPU virtual-address mapping timeline updates. Premature fence selection and incorrect reference management can cause stale or freed dma_fence objects to be used, resulting in reference-count underflows and kernel crashes. The correction selects the fence after virtual-address mapping work completes and balances references when exporting the fence to the VM timeline synchronization object.
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No public exploit code observed for this vulnerability.
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15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Linux kernel AMDGPU vulnerability addressed by refactoring last-fence updates and timeline management in amdgpu_gem_va_ioctl. The content does not specify the precise security impact.
A vulnerability covered by the Miracle Linux kernel package update. Individual technical details and exploit availability are not specified.
A vulnerability addressed by the AlmaLinux 9 kernel update; no vulnerability-specific technical details are supplied.
A specific vulnerability affecting AlmaLinux 10 kernel-related packages; the content provides no further technical details beyond listing it in the advisory.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.