Re: [syzbot] KASAN: use-after-free Write in __io_free_req

From: syzbot
Date: Fri Oct 29 2021 - 16:53:13 EST


Hello,

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

Reported-and-tested-by: syzbot+78b76ebc91042904f34e@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 1d5f5ea7 io-wq: remove worker to owner tw dependency
git tree: git://git.kernel.dk/linux-block for-5.16/io_uring
kernel config: https://syzkaller.appspot.com/x/.config?x=10c050a45aafafcc
dashboard link: https://syzkaller.appspot.com/bug?extid=78b76ebc91042904f34e
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: testing is done by a robot and is best-effort only.