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Update DNS records after pruning DHCP leases

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Not doing so can result in a use after free since the name for DHCP
derived DNS records is represented as a pointer into the DHCP lease
table. Update will only happen when necessary since lease_update_dns
tests internally on dns_dirty and the force argument is zero.

Signed-off-by: Erik Karlsson <erik.karlsson@iopsys.eu>
This commit is contained in:
Erik Karlsson
2024-04-29 20:44:13 +02:00
committed by Simon Kelley
parent ea84abe3e9
commit 80498fab01
1 changed files with 1 additions and 0 deletions
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src/dnsmasq.c
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@@ -1517,6 +1517,7 @@ static void async_event(int pipe, time_t now)
{ {
lease_prune(NULL, now); lease_prune(NULL, now);
lease_update_file(now); lease_update_file(now);
lease_update_dns(0);
} }
#ifdef HAVE_DHCP6 #ifdef HAVE_DHCP6
else if (daemon->doing_ra) else if (daemon->doing_ra)