CVE-2026-90387

A flaw was found in the swiotlb component of the Linux kernel. When CONFIGDMADIRECTREMAP is enabled, the swiotlbinitiotlbpool function incorrectly reconstructs the virtual address for dynamic memory pools. This error causes swiotlbfreetlb to fail in recognizing allocated memory chunks, potentiall...

CVE-2026-90387 swiotlb: Preserve allocation virtual address for dynamic pools

In the Linux kernel, the following vulnerability has been resolved: swiotlb: Preserve allocation virtual address for dynamic pools swiotlballoctlb can allocate from the DMA atomic pool when a decrypted pool is needed from atomic context. With CONFIGDMADIRECTREMAP, the atomic pool is backed by...