Re: [PATCH v3 sched_ext/for-7.3 34/36] sched_ext: Add scx_bpf_sub_kill() to evict a child sub-scheduler

On Tue, 07 Jul 2026 00:42:47 +0000, [email protected] wrote:
> - [High] The `fmt` argument in the newly added `scx_bpf_sub_kill_bstr` kfunc lacks the `__str` suffix, bypassing the BPF verifier's constant string checks and allowing a malicious BPF program to trigger an out-of-bounds read.

This follows the established _bstr kfunc convention: the fmt / data /
data__sz triple is exactly how the other scx *_bstr kfuncs are declared
and verified. Same as the v2 round. No change.

Thanks.

-- 
tejun