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[138.88.31.60]) by smtp.gmail.com with ESMTPSA id af79cd13be357-9160b02f86esm196416485a.35.2026.06.11.07.35.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Jun 2026 07:35:51 -0700 (PDT) From: David Windsor To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, eddyz87@gmail.com, memxor@gmail.com, shuah@kernel.org Cc: martin.lau@linux.dev, song@kernel.org, yonghong.song@linux.dev, jolsa@kernel.org, emil@etsalapatis.com, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, David Windsor Subject: [PATCH] selftests/bpf: Add test for sleepable lsm_cgroup rejection Date: Thu, 11 Jun 2026 10:35:49 -0400 Message-ID: <20260611143549.703914-1-dwindsor@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Confirm the verifier rejects loading a sleepable BPF_LSM_CGROUP program, as introduced in commit 5b038319be44 ("bpf: Reject sleepable BPF_LSM_CGROUP programs at load time"). Signed-off-by: David Windsor --- tools/testing/selftests/bpf/progs/verifier_lsm.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/tools/testing/selftests/bpf/progs/verifier_lsm.c b/tools/testing/selftests/bpf/progs/verifier_lsm.c index 38e8e9176862..2f8103bfa14e 100644 --- a/tools/testing/selftests/bpf/progs/verifier_lsm.c +++ b/tools/testing/selftests/bpf/progs/verifier_lsm.c @@ -188,4 +188,13 @@ int BPF_PROG(null_check, struct file *file) return 0; } +SEC("lsm_cgroup/file_open") +__description("sleepable lsm_cgroup program is rejected") +__failure __msg("Program of this type cannot be sleepable") +__flag(BPF_F_SLEEPABLE) +int BPF_PROG(sleepable_lsm_cgroup) +{ + return 0; +} + char _license[] SEC("license") = "GPL"; base-commit: 30dee2c176e7954f63d1fa3e52d172f30beb9bfb -- 2.53.0