Re: [syzbot] KASAN: use-after-free Read in add_wait_queue

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+950cee6d91e62329be2c@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         7d58de1a io_uring: don't recycle provided buffer if pu..
git tree:       git://git.kernel.dk/linux-block for-5.18/io_uring
kernel config:  https://syzkaller.appspot.com/x/.config?x=3172c0bf8614827
dashboard link: https://syzkaller.appspot.com/bug?extid=950cee6d91e62329be2c
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.