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

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Date:   Wed, 15 Sep 2021 07:13:48 +0200
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     syzbot <syzbot+3f5904753c2388727c6c@...kaller.appspotmail.com>,
        syzkaller-bugs@...glegroups.com, linux-kernel@...r.kernel.org
Subject: Re: [syzbot] WARNING: kmalloc bug in hash_netport_create

On Sat, 4 Sept 2021 at 10:23, syzbot
<syzbot+3f5904753c2388727c6c@...kaller.appspotmail.com> wrote:
>
> syzbot has bisected this issue to:
>
> commit 7661809d493b426e979f39ab512e3adf41fbcc69
> Author: Linus Torvalds <torvalds@...ux-foundation.org>
> Date:   Wed Jul 14 16:45:49 2021 +0000
>
>     mm: don't allow oversized kvmalloc() calls
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=113125f5300000
> start commit:   a9c9a6f741cd Merge tag 'scsi-misc' of git://git.kernel.org..
> git tree:       upstream
> final oops:     https://syzkaller.appspot.com/x/report.txt?x=133125f5300000
> console output: https://syzkaller.appspot.com/x/log.txt?x=153125f5300000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=1ac29107aeb2a552
> dashboard link: https://syzkaller.appspot.com/bug?extid=3f5904753c2388727c6c
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14581b33300000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13579a69300000
>
> Reported-by: syzbot+3f5904753c2388727c6c@...kaller.appspotmail.com
> Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz dup: WARNING: kmalloc bug in hash_net_create