Re: [PATCH bpf] selftests/bpf: Add BTF repeated field count overflow test

[Alexei Starovoitov]

On Tue Jun 9, 2026 at 9:47 AM PDT, Eduard Zingerman wrote:
> On Tue, 2026-06-09 at 11:37 +0000, Paul Moses wrote:
>> From 7129e266643883a4f83e65fce3ce20c7f7269fb3 Mon Sep 17 00:00:00 2001
>> From: Paul Moses <p@xxxxxxx>
>> Date: Tue, 9 Jun 2026 05:08:54 -0500
>> Subject: [PATCH bpf] selftests/bpf: Add BTF repeated field count overflow test
>> 
>> Add a raw BTF test that exercises repeated special-field expansion with a
>> large array count. The compact element layout keeps the array byte size
>> representable while the repeated field count overflows the old u32 capacity
>> calculation in btf_repeat_fields().
>> 
>> Signed-off-by: Paul Moses <p@xxxxxxx>
>> ---
>
> Note that this selftest is depending on a fix:
> https://lore.kernel.org/bpf/DJ4DWMO4HXCM.3NVLDGNT2704E@xxxxxxxxx/T/#t
> W/o the fix KASAN warning is reported when executing the test.
>
> Tested-by: Eduard Zingerman <eddyz87@xxxxxxxxx>

Pls resubmit both together.

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