Commit 2b4d0215bec0 for kernel

commit 2b4d0215bec0f09bfb872e9a8aa1e1943a42d5e7
Merge: 26fd6bff2c05 99ebc509eef5
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Fri May 1 08:45:23 2026 -0700

    Merge tag 'mm-hotfixes-stable-2026-04-30-15-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

    Pull MM fixes from Andrew Morton:
     "20 hotfixes. All are for MM (and for MMish maintainers). 9 are
      cc:stable and the remainder are for post-7.0 issues or aren't deemed
      suitable for backporting.

      There are two DAMON series from SeongJae Park which address races
      which could lead to use-after-free errors, and avoid the possibility
      of presenting stale parameter values to users"

    * tag 'mm-hotfixes-stable-2026-04-30-15-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
      mm: memcontrol: fix rcu unbalance in get_non_dying_memcg_end()
      mm/userfaultfd: detect VMA type change after copy retry in mfill_copy_folio_retry()
      MAINTAINERS: remove stale kdump project URL
      mm/damon/stat: detect and use fresh enabled value
      mm/damon/lru_sort: detect and use fresh enabled and kdamond_pid values
      mm/damon/reclaim: detect and use fresh enabled and kdamond_pid values
      selftests/mm: specify requirement for PROC_MEM_ALWAYS_FORCE=y
      mm/damon/sysfs-schemes: protect path kfree() with damon_sysfs_lock
      mm/damon/sysfs-schemes: protect memcg_path kfree() with damon_sysfs_lock
      MAINTAINERS: update Li Wang's email address
      MAINTAINERS, mailmap: update email address for Qi Zheng
      MAINTAINERS: update Liam's email address
      mm/hugetlb_cma: round up per_node before logging it
      MAINTAINERS: fix regex pattern in CORE MM category
      mm/vma: do not try to unmap a VMA if mmap_prepare() invoked from mmap()
      mm: start background writeback based on per-wb threshold for strictlimit BDIs
      kho: fix error handling in kho_add_subtree()
      liveupdate: fix return value on session allocation failure
      mailmap: update entry for Dan Carpenter
      vmalloc: fix buffer overflow in vrealloc_node_align()