Re: [syzbot] [bpf?] KMSAN: uninit-value in trie_delete_elem

[Yonghong Song]

On 4/1/24 11:36 PM, Aleksandr Nogikh wrote:
> Hi,
>
> On Mon, Apr 1, 2024 at 8:55 PM Yonghong Song <yonghong.song@xxxxxxxxx> wrote:
> > On 3/26/24 12:00 PM, syzbot wrote:
> > > Hello,
> > >
> > > syzbot found the following issue on:
> > >
> > > =====================================================
> > > BUG: KMSAN: uninit-value in trie_delete_elem+0xc0/0xbe0 kernel/bpf/lpm_trie.c:448
> > Unrelated to the bug itself, with KMSAN is enabled, qemu cannot boot my vm
> > any more. Anything special I need to do in order to boot a KMSAN kernel?
> Does the kernel print any specific errors to the serial console while
> booting? Or nothing at all?

In my case, nothing at all.

>