Comment 2 for bug 2023680

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Po-Hsu Lin (cypressyew) wrote (last edit ): Re: test_verifier in ubuntu_bpf fails - Permission denied

This issue can be found on L-azure Standard_D2pds_v5 (ARM64)
 #192/p bpf_get_task_stack return R0 range is refined FAIL
 Failed to load prog 'Permission denied'!
 func 'bpf_iter_task' arg0 has btf_id 20383 type STRUCT 'bpf_iter_meta'
 cannot access ptr member buf with moff 0 in struct seq_file with off 0 size 1
 R1 is of type seq_file but seq_file is expected
 verification time 1428 usec
 stack depth 8
 processed 27 insns (limit 1000000) max_states_per_insn 0 total_states 2 peak_states 2 mark_read 2

 #467/p d_path accept FAIL
 Failed to load prog 'Permission denied'!
 func 'dentry_open' arg0 has btf_id 198631 type STRUCT 'path'
 cannot access ptr member mnt with moff 0 in struct path with off 0 size 1
 R1 is of type path but path is expected
 verification time 1423 usec
 stack depth 8
 processed 7 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0

 #990/p reference tracking: bpf_sk_release(btf_tcp_sock) FAIL
 Failed to load prog 'Permission denied'!
 R1 is of type tcp_sock but sock_common is expected
 verification time 709 usec
 stack depth 48
 processed 24 insns (limit 1000000) max_states_per_insn 0 total_states 1 peak_states 1 mark_read 1