[PATCH 5.15] Backport the fix for CVE-2023-25012 to kernel v5.15

[He Gao <hegao@xxxxxxxxxx>]

This is the fix of CVE-2023-25012 for kernel v5.15.

Upstream commit:  https://github.com/torvalds/linux/commit/7644b1a1c9a7ae8ab99175989bfc8676055edb46

The affected code is in io_uring/io_uring.c instead of io_uring/fdinfo.c for v5.15. So the patch applies the same change to io_uring/io_uring.c.

Thanks!
He

Jens Axboe (1):
  io_uring/fdinfo: lock SQ thread while retrieving thread cpu/pid

 io_uring/io_uring.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

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2.42.0.869.gea05f2083d-goog