eBPF bytecode file verification failed used veristat tool.

[cfc4n]

root@vm-server:/cfc4n/project/ecapture# ../veristat/src/veristat -d user/bytecode/bash_kern.o
Processing 'bash_kern.o'...
libbpf: loading kernel BTF '/sys/kernel/btf/vmlinux': 0
libbpf: map 'events_t': created successfully, fd=4
libbpf: map 'events': failed to create: Invalid argument(-22)
libbpf: failed to load object 'user/bytecode/bash_kern.o'
libbpf: loading kernel BTF '/sys/kernel/btf/vmlinux': 0
libbpf: map 'events_t': created successfully, fd=4
libbpf: map 'events': failed to create: Invalid argument(-22)
libbpf: failed to load object 'user/bytecode/bash_kern.o'
PROCESSING user/bytecode/bash_kern.o/uretprobe_bash_retval, DURATION US: 0, VERDICT: failure, VERIFIER LOG:
  File         Program                  Verdict  Duration (us)  Insns  States  Peak states
-----------  -----------------------  -------  -------------  -----  ------  -----------
bash_kern.o  uretprobe_bash_readline  failure              0      0       0            0
bash_kern.o  uretprobe_bash_retval    failure              0      0       0            0
-----------  -----------------------  -------  -------------  -----  ------  -----------