Array map dump not complete

[vobst]

This code

0xffffa00031c2: 48 8b 7d e8                                  mov rdi, qword ptr [rbp - 0x18]
 0xffffa00031c6: 48 be 4c 4b c7 06 80 88 ff ff                movabs rsi, 0xffff888006c74b4c    # envd_bpf.rodata + 0x14c
 0xffffa00031d0: ba 13 00 00 00                               mov edx, 0x13
 0xffffa00031d5: e8 d6 7c 1a e1                               call 0xffff811aaeb0       # bpf_probe_write_user

Should correspond to

if (bpf_probe_write_user((void*)env, "LD_PRELOAD=libv.so\0", 19)) {

However, we do not recover the string in the map dump

# vol -f /io/dumps/azazel+envd_systemd-unit_libv-8733ce65-d799c7b011ae.elf linux.bpf_listmaps
Volatility 3 Framework 2.4.2
Progress:  100.00               Stacking attempts finished
OFFSET (V)      ID      NAME    TYPE    KEY SIZE        VALUE SIZE      MAX ENTRIES

0xc90000045ef0  2       iterator.rodata BpfMapType.BPF_MAP_TYPE_ARRAY   4       98      1
0x888006c74a00  5       envd_bpf.rodata BpfMapType.BPF_MAP_TYPE_ARRAY   4       116     1
0x888006c74e00  6       .rodata.str1.1  BpfMapType.BPF_MAP_TYPE_ARRAY   4       16      1
# cat -- -1.0x888006c74a00_map_5
{"0": "section (.rodata) = {\n (tp_sys_exit_execve.____fmt) b'debug: %s\\x00'\n (tp_sys_exit_execve.____fmt.1) b'debug: bail out!\\x00'\n (tp_sys_exit_execve.____fmt.2) b'error: write to AT_SECURE failed\\x00'\n (tp_sys_exit_execve.____fmt.4) b'error: write of fake env var failed\\x00'\n"}