[Dnsmasq-discuss] Badly formatted "dhcp-boot=" line crashes dnsmsaq 2.85

Matthias Andree matthias.andree at gmx.de
Wed Aug 4 15:33:33 UTC 2021


Am 03.08.21 um 12:43 schrieb Greg Wickham:
>
>  
>
> Hi,
>
>  
>
> I inadvertently left a “tag:” off a “dhcp-boot=“ line which resulted
> in dnsmasq crashing.
>
>  
>
> This was the line that caused Dnsmasq to crash:
>
>  
>
> dhcp-boot=tag:ww3001,UEFI,/ipxe.efi,10.109.0.1,10.109.0.1
>
>  
>
> The line was supposed to be:
>
>  
>
> dhcp-boot=tag:ww3001,tag:UEFI,/ipxe.efi,10.109.0.1,10.109.0.1
>
>
> We are using 2.82 in production where the crash doesn’t happen until a
> matching packet arrives.
>
>  
>
> But I did also try 2.85 before submitting this report and it crashes
> whilst parsing the configuration file:
>
> # /tmp/dnsmasq-2.85/src/dnsmasq -k -p0
>
> Segmentation fault
>
> #
>

Greg, this appears to be insufficient information to reproduce the issue
for me. What else is in your configuration? What operating system,
version, architecture etc. are you on? What distribution?




More information about the Dnsmasq-discuss mailing list