Re: [syzbot] WARNING: kmalloc bug in bpf

[Dmitry Vyukov]

On Fri, 22 Apr 2022 at 20:53, syzbot
<syzbot+cecf5b7071a0dfb76530@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 0708a0afe291bdfe1386d74d5ec1f0c27e8b9168
> Author: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
> Date:   Fri Mar 4 14:26:32 2022 +0000
>
>     mm: Consider __GFP_NOWARN flag for oversized kvmalloc() calls
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1499c6fcf00000
> start commit:   1d5a47424040 sfc: The RX page_ring is optional
> git tree:       net
> kernel config:  https://syzkaller.appspot.com/x/.config?x=1a86c22260afac2f
> dashboard link: https://syzkaller.appspot.com/bug?extid=cecf5b7071a0dfb76530
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=176738e7b00000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=13b4508db00000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: mm: Consider __GFP_NOWARN flag for oversized kvmalloc() calls
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Looks reasonable:

#syz fix: mm: Consider __GFP_NOWARN flag for oversized kvmalloc() calls