[PATCH 6.18.y v3 0/8] Backport fixes for handshake

Backport the ("net/handshake: Close the submit-side sock_hold race") commit
and its depends commits, also add fixes to the depend commits.

changelog v3:
Add ("net/handshake: Drain pending requests at net namespace exit") as it also
a fix now has been applyed in v7.0.12 in same serie. Build tested in my config.

changelog v2:
As Sasha point out, add ("file: ensure cleanup") and 
("net/handshake: Fix null-ptr-deref in handshake_complete()" fix the fault the
backport missed in v1 and rebase.

v1 Link:https://lore.kernel.org/stable/[email protected]/

Christian Brauner (3):
  file: add FD_{ADD,PREPARE}()
  file: ensure cleanup
  net/handshake: convert handshake_nl_accept_doit() to FD_PREPARE()

Chuck Lever (4):
  net/handshake: Take a long-lived file reference at submit
  net/handshake: hand off the pinned file reference to accept_doit
  net/handshake: Close the submit-side sock_hold race
  net/handshake: Drain pending requests at net namespace exit

Wang Liang (1):
  net/handshake: Fix null-ptr-deref in handshake_complete()

 include/linux/cleanup.h        |   7 ++
 include/linux/file.h           | 125 +++++++++++++++++++++++++++++++++
 net/handshake/handshake-test.c |   8 +++
 net/handshake/handshake.h      |   2 +
 net/handshake/netlink.c        |  56 +++++++--------
 net/handshake/request.c        |  65 +++++++++++++----
 6 files changed, 219 insertions(+), 44 deletions(-)

-- 
2.30.2