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| author | Mykyta Yatsenko <[email protected]> | 2025-05-14 11:32:20 +0000 |
|---|---|---|
| committer | Andrii Nakryiko <[email protected]> | 2025-05-14 16:30:06 +0000 |
| commit | d0445d7dd3fd9b15af7564c38d7aa3cbc29778ee (patch) | |
| tree | ce2ef839e13a8a727aaadf0f982ed5a8790c22b8 /tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c | |
| parent | bpf: Add support for __prog argument suffix to pass in prog->aux (diff) | |
| download | kernel-d0445d7dd3fd9b15af7564c38d7aa3cbc29778ee.tar.gz kernel-d0445d7dd3fd9b15af7564c38d7aa3cbc29778ee.zip | |
libbpf: Check bpf_map_skeleton link for NULL
Avoid dereferencing bpf_map_skeleton's link field if it's NULL.
If BPF map skeleton is created with the size, that indicates containing
link field, but the field was not actually initialized with valid
bpf_link pointer, libbpf crashes. This may happen when using libbpf-rs
skeleton.
Skeleton loading may still progress, but user needs to attach struct_ops
map separately.
Signed-off-by: Mykyta Yatsenko <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c')
0 files changed, 0 insertions, 0 deletions