v3: - Add a small selftest for the BPF CI, and split 1-patch into 3-patch series as recommended by Daniel. https://lore.kernel.org/all/d16b4f29-8966-464f-b530-35e39fda3f46@xxxxxxxxxxxxxxx/ v2: - Fix libbpf_probe_prog_types test failure reported by CI by adapting libbpf code. (thanks for jirka's reminder) v1: https://lore.kernel.org/all/20240620060701.1465291-1-wutengda@xxxxxxxxxxxxxxx/ Hi, This series is going to fix null-pointer-deref in resolve_prog_type() for BPF_PROG_TYPE_EXT. Patch 1 is the kernel-only fix, patch 2 is the libbpf one, and patch 3 is a small BPF selftest. Best regards, Tengda Tengda Wu (3): bpf: Fix null pointer dereference in resolve_prog_type() for BPF_PROG_TYPE_EXT libbpf: provide a valid attach_prog_fd before probing BPF_PROG_TYPE_EXT type selftests/bpf: Test for null-pointer-deref bugfix in resolve_prog_type() kernel/bpf/syscall.c | 5 ++++- tools/lib/bpf/libbpf_probes.c | 13 ++++++++++++- tools/testing/selftests/bpf/verifier/calls.c | 13 +++++++++++++ 3 files changed, 29 insertions(+), 2 deletions(-) -- 2.34.1
