Re: [syzbot] WARNING in bpf_check (3)

[Dmitry Vyukov]

On Mon, 7 Nov 2022 at 02:48, syzbot
<syzbot+245129539c27fecf099a@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 34dd3bad1a6f1dc7d18ee8dd53f1d31bffd2aee8
> Author: Alexei Starovoitov <ast@xxxxxxxxxx>
> Date:   Fri Sep 2 21:10:47 2022 +0000
>
>     bpf: Relax the requirement to use preallocated hash maps in tracing progs.
>
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1232e176880000
> start commit:   506357871c18 Merge tag 'spi-fix-v6.0-rc4' of git://git.ker..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=1b95a17a5bfb1521
> dashboard link: https://syzkaller.appspot.com/bug?extid=245129539c27fecf099a
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10940477080000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=177e8f43080000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: bpf: Relax the requirement to use preallocated hash maps in tracing progs.
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

Looks reasonable based on the subsystem and the patch:

#syz fix:
bpf: Relax the requirement to use preallocated hash maps in tracing progs.