On 27/06/13 03:56, Patrick McLean wrote:
Hi, running dnsmasq 2.66 we had a config that set pxe-server to a
blank value, and that was causing dnsmasq to segfault every time it
recieved a dhcp request.
I have attached a backtrace (generated when compiled with gcc 4.8's
-fsanitize=address), I manually printed some relevant variables as
well.
Thanks for this, and the additional stuff you sent. I couldn't believe
that a straightforward "crash on empty option" bug had survived
un-noticed thus far, and I was right. It turns out that to trigger the
problem, you need an empty string option, and a client which insists
that such options are send zero-terminated.
Fix here.
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=625ac28c61b0a5e6a252db00d72fbac6d88718fd
Thanks for your help.
Cheers,
Simon.
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