selftests/bpf: Add ksock test for async callback guard

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Because the kfuncs are going through LSM hooks, allowing their use via
workqueue callbacks would expose the wrong credentials. This test
ensures the kfunc are preventing any use from these contexts.

Signed-off-by: Mahe Tardy <mahe.tardy@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Acked-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/bpf/20260813110540.103550-6-mahe.tardy@gmail.com

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Mahe Tardy 2026-08-13 11:05:40 +00:00 • committed by Daniel Borkmann

parent 7b0dfbf577

commit c93cbdb13f

2 changed files with 107 additions and 0 deletions

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45

tools/testing/selftests/bpf/prog_tests/ksock_wq.c

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62

tools/testing/selftests/bpf/progs/ksock_wq.c

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