CVE-2022-50482: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clean up si_domain in the init_dmars() error path A splat from kmem_cache_destroy() was seen with a kernel prior to commit ee2653bbe89d ("iommu/vt-d: Remove domain and devinfo mempool") when there was a failure in init_dmars(), because the iommu_domain cache still had objects. While the mempool code is now gone, there still is a leak of the si_domain memory if init_dmars() fails. So clean up si_domain in the init_dmars() error path.

Affected products

• Linux Linux Kernel: from 4.2, before 4.14.298 (fixed in 4.14.298); from 4.15, before 4.19.264 (fixed in 4.19.264); from 4.20, before 5.4.221 (fixed in 5.4.221); from 5.5, before 5.10.152 (fixed in 5.10.152); from 5.11, before 5.15.76 (fixed in 5.15.76); from 5.16, before 6.0.6 (fixed in 6.0.6); …

Published 2025-10-04. Last modified 2026-06-17.