Re: WARNING in kfree (2)

From: syzbot
Date: Tue Mar 17 2020 - 17:00:08 EST


syzbot has bisected this bug to:

commit 599be01ee567b61f4471ee8078870847d0a11e8e
Author: Cong Wang <xiyou.wangcong@xxxxxxxxx>
Date: Mon Feb 3 05:14:35 2020 +0000

net_sched: fix an OOB access in cls_tcindex

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13257803e00000
start commit: 2c523b34 Linux 5.6-rc5
git tree: upstream
final crash: https://syzkaller.appspot.com/x/report.txt?x=10a57803e00000
console output: https://syzkaller.appspot.com/x/log.txt?x=17257803e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=c2e311dba9a02ba9
dashboard link: https://syzkaller.appspot.com/bug?extid=50ef5e5e5ea5f812f0c2
userspace arch: i386
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15d8ae91e00000

Reported-by: syzbot+50ef5e5e5ea5f812f0c2@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 599be01ee567 ("net_sched: fix an OOB access in cls_tcindex")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection