There is a 'malloc' call, which can be unsuccessful. Add the malloc failure checking to avoid possible null dereference.
Signed-off-by: Kunwu Chan chentao@kylinos.cn --- tools/testing/selftests/bpf/prog_tests/tp_attach_query.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c b/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c index 655d69f0ff0b..302b25408a53 100644 --- a/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c +++ b/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c @@ -39,6 +39,9 @@ void serial_test_tp_attach_query(void) attr.wakeup_events = 1;
query = malloc(sizeof(*query) + sizeof(__u32) * num_progs); + if (CHECK(!query, "malloc()", "error:%s\n", strerror(errno))) + return; + for (i = 0; i < num_progs; i++) { err = bpf_prog_test_load(file, BPF_PROG_TYPE_TRACEPOINT, &obj[i], &prog_fd[i]);