Re: [syzbot] WARNING in check_map_prog_compatibility

From: Andrii Nakryiko
Date: Fri Nov 04 2022 - 19:05:57 EST


On Fri, Nov 4, 2022 at 3:50 PM syzbot
<syzbot+e3f8d4df1e1981a97abb@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=1599d319880000
> start commit: 200e340f2196 Merge tag 'pull-work.dcache' of git://git.ker..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=1b664fba5e66c4bf
> dashboard link: https://syzkaller.appspot.com/bug?extid=e3f8d4df1e1981a97abb
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=165415a7080000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1716f705080000
>
> 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

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