[GIT PULL] io_uring fixes for 6.19-rc7

[Jens Axboe <axboe@kernel.dk>]

Hi Linus,

A few fixes for io_uring that should go into this release. This pull
request contains:

- Fix for a potential leak of an iovec, if a specific cleanup path is
  used and the rw_cache is full at the time of the call.

- Fix for a regression added in this cycle, where waitid should be using
  prober release/acquire semantics for updating the wait queue head.

- Check for the cancelation bit being set for every work item processed
  by io-wq, not just at the start of the loop. Has no real practical
  implications other than to shut up syzbot doing crazy things that
  grossly overload a system, hence slowing down ring exit.

- A few selftest additions, updating the mini_liburing that selftests
  use.

Please pull!


The following changes since commit da579f05ef0faada3559e7faddf761c75cdf85e1:

  io_uring: move local task_work in exit cancel loop (2026-01-14 10:18:19 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git tags/io_uring-6.19-20260122

for you to fetch changes up to 145e0074392587606aa5df353d0e761f0b8357d5:

  selftests/io_uring: support NO_SQARRAY in miniliburing (2026-01-21 07:55:13 -0700)

----------------------------------------------------------------
io_uring-6.19-20260122

----------------------------------------------------------------
Jens Axboe (3):
      io_uring/rw: free potentially allocated iovec on cache put failure
      io_uring/waitid: fix KCSAN warning on io_waitid->head
      io_uring/io-wq: check IO_WQ_BIT_EXIT inside work run loop

Pavel Begunkov (2):
      selftests/io_uring: add io_uring_queue_init_params
      selftests/io_uring: support NO_SQARRAY in miniliburing

 io_uring/io-wq.c                       |  2 +-
 io_uring/rw.c                          | 15 ++++++---
 io_uring/waitid.c                      |  6 ++--
 tools/include/io_uring/mini_liburing.h | 59 +++++++++++++++++++++++++---------
 4 files changed, 59 insertions(+), 23 deletions(-)

-- 
Jens Axboe