kernel: udmabuf: change folios array from kmalloc to kvmalloc

A flaw was found in the Linux kernel's udmabuf driver. This vulnerability allows a local user to cause a denial of service DoS by requesting large buffer allocations. Because the driver relies on physically contiguous memory allocations with strict size limits, requesting buffers that exceed kern...

CVE-2024-46847 mm: vmalloc: ensure vmap_block is initialised before adding to queue

In the Linux kernel, the following vulnerability has been resolved: mm: vmalloc: ensure vmapblock is initialised before adding to queue Commit 8c61291fd850 "mm: fix incorrect vbq reference in purgefragmentedblock" extended the 'vmapblock' structure to contain a 'cpu' field which is set at...