Re: KASAN: use-after-free Read in tcindex_dump

[syzbot]

Hello,

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

Reported-and-tested-by: syzbot+653090db2562495901dc@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         2c19e526 net_sched: hold rtnl lock for tcindex_partial_des..
git tree:       https://github.com/congwang/linux.git tcindex
kernel config:  https://syzkaller.appspot.com/x/.config?x=bcbe864577669742
dashboard link: https://syzkaller.appspot.com/bug?extid=653090db2562495901dc
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)

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