The uninitialized bpf_iter_task variable poses a risk of triggering a kernel panic. To fix this potential issue, it's imperative to ensure proper initialization of the variable. This problem surfaced during the implementation phase of the bits iterator [0]. [0]. https://lwn.net/ml/bpf/CALOAHbDJWHOB+viBz6SUqdeF+Nkxmh4gLZo5Ad_keQXjBWHAsQ@xxxxxxxxxxxxxx Yafang Shao (3): bpf: Fix an issue due to uninitialized bpf_iter_task selftests/bpf: Add negtive test cases for task iter libbpf: Check the return value of bpf_iter_<type>_new() kernel/bpf/task_iter.c | 2 ++ tools/lib/bpf/bpf_helpers.h | 16 ++++++++++++---- tools/testing/selftests/bpf/prog_tests/iters.c | 1 + tools/testing/selftests/bpf/progs/iters_task.c | 12 +++++++++++- 4 files changed, 26 insertions(+), 5 deletions(-) -- 2.39.1
