Re: [syzbot] [bpf?] possible deadlock in trie_delete_elem

Alexei Starovoitov
2025-05-08T18:00:28Z

On Thu, May 8, 2025 at 12:13 AM syzbot
<syzbot+9d95beb2a3c260622518@syzkaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 47979314c0fe245ed54306e2f91b3f819c7c0f9f
> Author: Kumar Kartikeya Dwivedi <memxor@gmail.com>
> Date: Sun Mar 16 04:05:37 2025 +0000
>
> bpf: Convert lpm_trie.c to rqspinlock
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=140598f4580000
> start commit: c2933b2befe2 Merge tag 'net-6.14-rc1' of git://git.kernel...
> git tree: net-next
> kernel config: https://syzkaller.appspot.com/x/.config?x=d033b14aeef39158
> dashboard link: https://syzkaller.appspot.com/bug?extid=9d95beb2a3c260622518
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=108e1724580000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=177035f8580000
>
> If the result looks correct, please mark the issue as fixed by replying with:

yes.

#syz fix: bpf: Convert lpm_trie.c to rqspinlock