CVE-2026-89745

In the Linux kernel, the following vulnerability has been resolved:

debugfs: Fix lockdown check for mmap prepare

Commit 651fdda8406d ("relay: update relay to use mmap prepare") changed the mmap file operation to mmap prepare for relayfs, but the lockdown check in debugfs was not updated accordingly.

This prevents debugfs from being locked down when the kernel is in integrity mode if a file uses mmap prepare but not mmap.

Since the conversion to mmap prepare across the kernel is not yet complete, update the lockdown check to look for both mmap and mmap prepare to ensure comprehensive coverage.