[PATCH 6.1 0/8] Backporting CVE-2025-38073 fix patch

[Mahmoud Adam <mngyadam@amazon.de>]

This series aims to fix the CVE-2025-38073 for 6.1 LTS. Which is fixed
by c0e473a0d226 ("block: fix race between set_blocksize and read
paths"). This patch is built on top multiple refactors that where
merged on 6.6. The needed dependecies are:

  - e003f74afbd2 ("filemap: add a kiocb_invalidate_pages helper")
  - c402a9a9430b ("filemap: add a kiocb_invalidate_post_direct_write
    helper")
  - 182c25e9c157 ("filemap: update ki_pos in generic_perform_write")
  - 44fff0fa08ec ("fs: factor out a direct_write_fallback helper")
  - 727cfe976758 ("block: open code __generic_file_write_iter for
    blkdev writes")

Also backport follow up fixes:
- fb881cd76045 ("nilfs2: fix deadlock warnings caused by lock
  dependency in init_nilfs()").
- 8287474aa5ff ("direct_write_fallback(): on error revert the ->ki_pos
  update from buffered write")

Thanks,
MNAdam

Al Viro (1):
  direct_write_fallback(): on error revert the ->ki_pos update from
    buffered write

Christoph Hellwig (5):
  filemap: add a kiocb_invalidate_pages helper
  filemap: add a kiocb_invalidate_post_direct_write helper
  filemap: update ki_pos in generic_perform_write
  fs: factor out a direct_write_fallback helper
  block: open code __generic_file_write_iter for blkdev writes

Darrick J. Wong (1):
  block: fix race between set_blocksize and read paths

Ryusuke Konishi (1):
  nilfs2: fix deadlock warnings caused by lock dependency in
    init_nilfs()

 block/bdev.c            |  17 +++++
 block/blk-zoned.c       |   5 +-
 block/fops.c            |  61 +++++++++++++++-
 block/ioctl.c           |   6 ++
 fs/ceph/file.c          |   2 -
 fs/direct-io.c          |  10 +--
 fs/ext4/file.c          |   9 +--
 fs/f2fs/file.c          |   1 -
 fs/iomap/direct-io.c    |  12 +---
 fs/libfs.c              |  42 +++++++++++
 fs/nfs/file.c           |   1 -
 fs/nilfs2/the_nilfs.c   |   3 -
 include/linux/fs.h      |   7 +-
 include/linux/pagemap.h |   2 +
 mm/filemap.c            | 154 +++++++++++++++++-----------------------
 15 files changed, 205 insertions(+), 127 deletions(-)

-- 
2.47.3




Amazon Web Services Development Center Germany GmbH
Tamara-Danz-Str. 13
10243 Berlin
Geschaeftsfuehrung: Christian Schlaeger
Eingetragen am Amtsgericht Charlottenburg unter HRB 257764 B
Sitz: Berlin
Ust-ID: DE 365 538 597