CVE-2019-20934

CVE-2019-20934 affects the Linux kernel prior to 5.2.6. On NUMA systems, the scheduler’s show_numa_stats() contains a use-after-free when freeing NUMA fault statistics, CID-16d51a590a8c. The vulnerability is acknowledged in vendor advisories (e.g., Unity Linux UTSA advisories referencing CVE-2019...

CVE-2023-52781

CVE-2023-52781 concerns the Linux kernel USB config BOS descriptor handling. In usb_get_bos_descriptor(), an iteration issue occurs when skipping USB_DT_DEVICE_CAPABILITY, causing the same descriptor to be read repeatedly. The fix introduces a goto to advance the pointer and bytes read so the fun...

CVE-2025-39961

Summary. CVE-2025-39961 covers a race in the AMD IOMMU pgtable path where unmap may read pgtable->[root/mode] without a lock while the driver increases address space. This can lead to reading a mismatched page-table level, causing iommu_unmap to fail and upper layers to log WARN_ON. The fix, i...