linux-kernel - Re: [syzbot] WARNING: kmalloc bug in bpf

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Date:   Sun, 12 Dec 2021 18:46:08 -0800
From:   syzbot <syzbot+cecf5b7071a0dfb76530@...kaller.appspotmail.com>
To:     andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org,
        daniel@...earbox.net, davem@...emloft.net, hawk@...nel.org,
        jiri@...dia.com, john.fastabend@...il.com, kafai@...com,
        kpsingh@...nel.org, kuba@...nel.org, leonro@...dia.com,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        songliubraving@...com, syzkaller-bugs@...glegroups.com, yhs@...com
Subject: Re: [syzbot] WARNING: kmalloc bug in bpf

syzbot has bisected this issue to:

commit 22849b5ea5952d853547cc5e0651f34a246b2a4f
Author: Leon Romanovsky <leonro@...dia.com>
Date:   Thu Oct 21 14:16:14 2021 +0000

    devlink: Remove not-executed trap policer notifications

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1465b449b00000
start commit:   ee60e626d536 netdevsim: don't overwrite read only ethtool ..
git tree:       net
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1665b449b00000
console output: https://syzkaller.appspot.com/x/log.txt?x=1265b449b00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=221ffc09e39ebbd1
dashboard link: https://syzkaller.appspot.com/bug?extid=cecf5b7071a0dfb76530
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12a14b55b00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13375f75b00000

Reported-by: syzbot+cecf5b7071a0dfb76530@...kaller.appspotmail.com
Fixes: 22849b5ea595 ("devlink: Remove not-executed trap policer notifications")

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