[Kea-users] Multiple Kea-DHCP4 Segfaults on Version 3.0.0 (libdhcp_stat_cmds.so, libdhcp_ping_check.so, libdhcp_bootp.so)

[Dipesh Kayastha]

Hello ISC Kea Team,

I’m encountering repeated segmentation faults with Kea-DHCP4 (version
3.0.0). The crashes occur in different shared libraries such as
`libdhcp_stat_cmds.so`, `libdhcp_ping_check.so`, and `libdhcp_bootp.so`.

Below are a few examples from syslog:

2025-09-30 14:40:34Z localhost kernel: [1644.526054] kea-dhcp4[24444]:
segfault at 7f3787639cce ip 00007f3787639cce sp 00007f37873e7e40 error 14
in libdhcp_stat_cmds.so[7f3787a81000+27000]
2025-09-30 14:45:59Z localhost kernel: [1968.899022] kea-dhcp4[26689]:
segfault at 7fb2828b1cce ip 00007fb2828b1cce sp 00007fb28265fe40 error 14
in libdhcp_bootp.so[7fb282f29000+10000]
2025-09-30 08:07:55Z localhost kernel: [835.720681] kea-dhcp4[18082]:
segfault at 7f10fac8ccce ip 00007f10fac8ccce sp 00007f10faa3be40 error 14
in libdhcp_stat_cmds.so[7f10fb0ce000+27000]
2025-09-30 06:58:57Z localhost kernel: [881.177676] kea-dhcp4[23021]:
segfault at 7f94da470cce ip 00007f94da470cce sp 00007f94da21fe40 error 14
in libdhcp_ping_check.so[7f94dacee000+6d000]
2025-09-30 06:02:47Z localhost kernel: [841.776952] kea-dhcp4[26425]:
segfault at 7f23c87e0cce ip 00007f23c87e0cce sp 00007f23c858fe40 error 14
in libdhcp_ping_check.so[7f23c905e000+6d000]

Setup details:
- **Kea version:** 3.0.0
- **OS:** Ubuntu
- **Backend:** (please specify, e.g., memfile or MySQL/PostgreSQL)
- **Modules enabled:** ping-check, stat-cmds, bootp

Questions:
1. Are there any known issues or open tickets related to segfaults in these
modules on Kea 3.0.0?
2. Do you recommend enabling specific debug symbols or core dump analysis
for better diagnostics?

Please let me know if more details or core dumps would help in analyzing
this further.

Thank you,
Dipesh
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