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...

SUSE CVE-2024-56544

In the Linux kernel, the following vulnerability has been resolved: udmabuf: change folios array from kmalloc to kvmalloc When PAGESIZE 4096, MAXPAGEORDER 10, 64bit machine, pagealloc only support 4MB. If above this, trigger this warn and return NULL. udmabuf can change size limit, if change it t...