kernel/linux.git/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c, branch linux-7.0.yLinux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=linux-7.0.y2024-01-04T05:08:26+00:00selftests/bpf: Add a selftest with > 512-byte percpu allocation size2024-01-04T05:08:26+00:00Yonghong Songyonghong.song@linux.dev2023-12-22T03:18:12+00:00urn:sha1:adc8c4549d9e74d2359c217d2478b18ecdd15c91
Add a selftest to capture the verification failure when the allocation
size is greater than 512.
Acked-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20231222031812.1293190-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
selftests/bpf: Add some negative tests2023-09-08T15:42:18+00:00Yonghong Songyonghong.song@linux.dev2023-08-27T15:28:32+00:00urn:sha1:1bd7931728718bc463c43b78ab74954452e099e3
Add a few negative tests for common mistakes with using percpu kptr
including:
- store to percpu kptr.
- type mistach in bpf_kptr_xchg arguments.
- sleepable prog with untrusted arg for bpf_this_cpu_ptr().
- bpf_percpu_obj_new && bpf_obj_drop, and bpf_obj_new && bpf_percpu_obj_drop
- struct with ptr for bpf_percpu_obj_new
- struct with special field (e.g., bpf_spin_lock) for bpf_percpu_obj_new
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230827152832.2002421-1-yonghong.song@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>