[GIT PULL] hotfixes for 6.3

[Andrew Morton]

Linus,

please merge this batch of hotfixes for mm/ and for other parts of the
kernel, thanks.



The following changes since commit c45ea315a602d45569b08b93e9ab30f6a63a38aa:

  maple_tree: fix a potential concurrency bug in RCU mode (2023-04-05 18:06:25 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm tags/mm-hotfixes-stable-2023-04-19-16-36

for you to fetch changes up to ef832747a82dfbc22a3702219cc716f449b24e4a:

  nilfs2: initialize unused bytes in segment summary blocks (2023-04-18 14:22:14 -0700)

----------------------------------------------------------------
22 hotfixes.

19 are cc:stable and the remainder address issues which were introduced
during this merge cycle, or aren't considered suitable for -stable
backporting.

19 are for MM and the remainder are for other subsystems.

----------------------------------------------------------------
Alexander Potapenko (2):
      mm: kmsan: handle alloc failures in kmsan_vmap_pages_range_noflush()
      mm: kmsan: handle alloc failures in kmsan_ioremap_page_range()

Baokun Li (1):
      writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs

David Hildenbrand (1):
      mm/userfaultfd: fix uffd-wp handling for THP migration entries

Jonathan Toppins (1):
      mailmap: update jtoppins' entry to reference correct email

Liam R. Howlett (5):
      mm/mprotect: fix do_mprotect_pkey() return on error
      mm/mempolicy: fix use-after-free of VMA iterator
      maple_tree: make maple state reusable after mas_empty_area_rev()
      maple_tree: fix mas_empty_area() search
      mm/mmap: regression fix for unmapped_area{_topdown}

Mathieu Desnoyers (1):
      mm: fix memory leak on mm_init error handling

Mel Gorman (1):
      mm: page_alloc: skip regions with hugetlbfs pages when allocating 1G pages

Naoya Horiguchi (1):
      mm/huge_memory.c: warn with pr_warn_ratelimited instead of VM_WARN_ON_ONCE_FOLIO

Ondrej Mosnacek (1):
      kernel/sys.c: fix and improve control flow in __sys_setres[ug]id()

Peng Zhang (1):
      maple_tree: fix a potential memory leak, OOB access, or other unpredictable bug

Peter Xu (2):
      mm/khugepaged: check again on anon uffd-wp during isolation
      Revert "userfaultfd: don't fail on unrecognized features"

Qi Zheng (1):
      mm: swap: fix performance regression on sparsetruncate-tiny

Ryusuke Konishi (1):
      nilfs2: initialize unused bytes in segment summary blocks

SeongJae Park (1):
      tools/Makefile: do missed s/vm/mm/

Steve Chou (1):
      tools/mm/page_owner_sort.c: fix TGID output when cull=tg is used

Tetsuo Handa (1):
      mm/page_alloc: fix potential deadlock on zonelist_update_seq seqlock

 .mailmap                   |   2 +
 fs/fs-writeback.c          |  17 +++++---
 fs/nilfs2/segment.c        |  20 +++++++++
 fs/userfaultfd.c           |   6 ++-
 include/linux/kmsan.h      |  39 +++++++++--------
 kernel/fork.c              |   1 +
 kernel/sys.c               |  69 +++++++++++++++++-------------
 lib/maple_tree.c           |  66 ++++++++++++++--------------
 mm/backing-dev.c           |  12 +++++-
 mm/huge_memory.c           |  19 +++++++--
 mm/khugepaged.c            |   4 ++
 mm/kmsan/hooks.c           |  55 ++++++++++++++++++++----
 mm/kmsan/shadow.c          |  27 ++++++++----
 mm/mempolicy.c             | 104 +++++++++++++++++++++------------------------
 mm/mmap.c                  |  48 ++++++++++++++++++---
 mm/mprotect.c              |   2 +-
 mm/page_alloc.c            |  19 +++++++++
 mm/swap.c                  |   2 +-
 mm/vmalloc.c               |  10 +++--
 tools/Makefile             |  14 +++---
 tools/mm/page_owner_sort.c |   2 +-
 21 files changed, 351 insertions(+), 187 deletions(-)