Re: [PATCH bpf-next v6 02/23] bpf/verifier: allow kfunc to read user provided context

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On 7/12/22 7:58 AM, Benjamin Tissoires wrote:
When a kfunc was trying to access data from context in a syscall eBPF
program, the verifier was rejecting the call.
This is because the syscall context is not known at compile time, and
so we need to check this when actually accessing it.

Check for the valid memory access and allow such situation to happen.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>

Acked-by: Yonghong Song <yhs@xxxxxx>



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