Please read this before reporting a bug:
https://wiki.archlinux.org/title/Bug_reporting_guidelines
Do NOT report bugs when a package is just outdated, or it is in the AUR. Use the 'flag out of date' link on the package page, or the Mailing List.
REPEAT: Do NOT report bugs for outdated packages!
https://wiki.archlinux.org/title/Bug_reporting_guidelines
Do NOT report bugs when a package is just outdated, or it is in the AUR. Use the 'flag out of date' link on the package page, or the Mailing List.
REPEAT: Do NOT report bugs for outdated packages!
FS#73684 - [dnsmasq] Broken SIGHUP handling in 2.86, regression from 2.85
Attached to Project:
Arch Linux
Opened by Charles Turner (cturner) - Tuesday, 08 February 2022, 10:43 GMT
Last edited by Antonio Rojas (arojas) - Tuesday, 08 February 2022, 10:45 GMT
Opened by Charles Turner (cturner) - Tuesday, 08 February 2022, 10:43 GMT
Last edited by Antonio Rojas (arojas) - Tuesday, 08 February 2022, 10:45 GMT
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DetailsDescription:
Additional info: * package version(s) Regression in 2.86-1 Works fine in 2.85-1 * config and/or log files etc. All tested using the CLI, dnsmasq --log-facility=- --keep-in-foreground --port=0 --pid-file=/mnt/tmp/boots/dnsmasq.pid --dhcp-hostsfile=/mnt/tmp/boots/hosts.dhcp --dhcp-optsfile=/mnt/tmp/boots/options.dhcp --dhcp-leasefile=/mnt/tmp/boots/dnsmasq.leases --dhcp-match=set:efi-x86_64,option:client-arch,7 --dhcp-boot=tag:efi-x86_64,syslinux.efi --dhcp-boot=lpxelinux.0 --dhcp-range=10.42.0.10,10.42.0.100 --dhcp-script=/bin/echo --enable-tftp=private --tftp-root=/mnt/tmp/boots/tftp --log-queries=extra --conf-file=/dev/null --interface=private * link to upstream bug report, if any https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016133.html Steps to reproduce: Start dnsmasq as above (taking care to setup the file paths needed for the server) Get the leader daemon's PID (the one owned by `nobody') Notice you can `kill -s SIGHUP <pid>` as many times as you like before the service has responded to BOOTP/DHCP requests. It correctly rereads some configuration files. Perform a network boot on the private interface. Repeat the `kill -s SIGHUP <pid>`, the daemon will SIGABRT. It enters a syscall and fails to correctly handle the interrupt, crashing in this case. |
This task depends upon
commit 10d8b5f001a34ff46b3a72575f3af64b065f8637
Author: Petr Menšík <pemensik@redhat.com>
Date: Wed Apr 14 21:08:31 2021 +0100
Reduce code duplication, reuse existing functions
dhcp_config_free and dhcp_opt_free already implement the same
algorithm.
Reuse them. Adds forgotten hostname cleanup to config free.
If it hits you, revert that and things work again.