Re: Hitting verifier backtracking bug on 6.5.5 kernel

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Toke Høiland-Jørgensen <toke@xxxxxxxxxx> writes:

> Shung-Hsi Yu <shung-hsi.yu@xxxxxxxx> writes:
>
>> Patch based on Andrii's analysis.
>>
>> Given that both BPF_END and BPF_NEG always operates on dst_reg itself
>> and that bt_is_reg_set(bt, dreg) was already checked I believe we can
>> just return with no futher action.
>
> Alright, manually applied this to bpf-next and indeed this enables the
> netobserv-bpf-agent to load successfully. Care to submit a formal patch?
> In that case please add my:
>
> Tested-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
>
> Thanks!

Friendly ping - are you planning to submit an official patch for this? :)

-Toke






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