Hello, I'd like to make a bug report following an issue discovered via Proxmox VE #5949 (https://bugzilla.proxmox.com/show_bug.cgi?id=5949). This happens on debian dnsmasq package version 2.89-1. I have not yet tested on latest release / dev, but if you wish, I can try to reproduce on it too.
How to reproduce: * general dnsmasq configuration * configure interface (not sure this is mandatory for reproduction) * configure dhcp-option for a subnet (same comment) * do NOT create the dhcp-range in the config file * write ethers file with an entry that's in the subnet without dhcp-range * ask for reload via systemd * update lease via dBus, see code with link below https://git.proxmox.com/?p=pve-network.git;a=blob;f=src/PVE/Network/SDN/Dhcp/Dnsmasq.pm;h=ae52d3199e0fc51fd1401d7dd78085ad730e5588;hb=refs/heads/master#l41 * segfault happens at this point Restarting manually via systemctl after the crash does not yields any further errors. The crash/segmentation fault precisely happens just right after reload is triggered. I have the following message in journalctl (sorry for the french!): nov. 28 12:49:38 debian12-dev systemd[1]: Starting dnsmasq@simple.service - dnsmasq (simple) - A lightweight DHCP and caching DNS server> nov. 28 12:49:38 debian12-dev dnsmasq[10598]: demarré, version 2.89 (taille de cache 150) nov. 28 12:49:38 debian12-dev dnsmasq[10598]: options à la compilation : IPv6 GNU-getopt DBus no-UBus i18n IDN2 DHCP DHCPv6 no-Lua TFTP > nov. 28 12:49:38 debian12-dev dnsmasq[10598]: Support DBus autorisé : connecté au bus système nov. 28 12:49:38 debian12-dev dnsmasq-dhcp[10598]: annonces de routeur IPv6 activées nov. 28 12:49:38 debian12-dev dnsmasq[10598]: Lecture de /etc/resolv.conf nov. 28 12:49:38 debian12-dev dnsmasq[10598]: utilise le serveur de nom 192.168.122.1#53 nov. 28 12:49:38 debian12-dev dnsmasq[10598]: cache vidé nov. 28 12:49:39 debian12-dev systemd[1]: Started dnsmasq@simple.service - dnsmasq (simple) - A lightweight DHCP and caching DNS server. nov. 28 12:49:44 debian12-dev systemd[1]: dnsmasq@simple.service: Main process exited, code=killed, status=11/SEGV Don't hesitate to get back to me if you need further details. Best regards -- Lou Lécrivain Systems & Network engineer WDZ GmbH[cid:84f4bb77-1e41-46c1-a65e-6bb33f657272] 📧 lou.lecriv...@wdz.de<mailto:lou.lecriv...@wdz.de> [cid:77d6d623-e712-471c-b666-a8b6e04df53b]<https://outlook.office.com/bookwithme/user/347bbab3d47d435cadf7ceea954b3...@wdz.de?anonymous&ep=signature> Book a meeting with me<https://outlook.office.com/bookwithme/user/347bbab3d47d435cadf7ceea954b3...@wdz.de?anonymous&ep=signature>
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