CVE-2022-50380: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: mm: /proc/pid/smapsrollup: fix no vma's null-deref Commit 258f669e7e88 "mm: /proc/pid/smapsrollup: convert to single value seqfile" introduced a null-deref if there are no vma's in the task in showsmapsrollup...