Re: BUG: unable to handle kernel paging request in bpf_dispatcher_xdp #forregzbot

Thorsten Leemhuis
2022-12-08T08:44:12Z

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On 06.12.22 04:28, Hao Sun wrote:
>
> The following crash can be triggered with the BPF prog provided.
> It seems the verifier passed some invalid progs. I will try to simplify
> the C reproducer, for now, the following can reproduce this:

Thanks for the report. To be sure below issue doesn't fall through the
cracks unnoticed, I'm adding it to regzbot, my Linux kernel regression
tracking bot:

#regzbot ^introduced c86df29d11df
#regzbot title net/bpf: BUG: unable to handle kernel paging request in
bpf_dispatcher_xdp
#regzbot ignore-activity

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)

P.S.: As the Linux kernel's regression tracker I deal with a lot of
reports and sometimes miss something important when writing mails like
this. If that's the case here, don't hesitate to tell me in a public
reply, it's in everyone's interest to set the public record straight.