Threats Tagged 'cve-2026-98520'
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Threats Tagged 'cve-2026-98520'
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A use-after-free and multi-container mapping gap vulnerability in the Linux kernel's drm/amdkfd component has been resolved. The issue involves kfd_dev_mapping caching the address_space of only the first /dev/kfd opener, leading to a dangling pointer after the first container exits and stale mappings for subsequent containers. This can cause GPU reset hangs and stale doorbell/MMIO page mappings accessible to guest users, risking PCIe transaction timeouts and NMI panics. The fix involves redirecting all openers' file mappings to a single anonymous inode's address_space owned by the module, preventing dangling pointers and ensuring all mappings are correctly unmapped during GPU reset. Join the discussion | GCVE Database | 10/18/2026, 18:31:52 UTC Added: 10/18/2026, 19:40:31 UTC |
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