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

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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.






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