[PATCH 5.10] Backport the fix for CVE-2023-25012 to kernel v5.10

This is the fix of CVE-2023-25012 for kernel v5.10.

Upstream commit: https://github.com/torvalds/linux/commit/7644b1a1c9a7ae8ab99175989bfc8676055...

The affected code is in io_uring/io_uring.c instead of io_uring/fdinfo.c for v5.10. 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(-)