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Fix use-after-free in mark_servers()

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Petr Menšík
2022-11-26 18:49:21 +00:00
committed by Simon Kelley
parent 02f8754339
commit 022ad63f0c
1 changed files with 5 additions and 3 deletions
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8
src/domain-match.c
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@@ -559,7 +559,7 @@ static int maybe_free_servers = 0;
/* Must be called before add_update_server() to set daemon->servers_tail */
void mark_servers(int flag)
{
struct server *serv, **up;
struct server *serv, *next, **up;
maybe_free_servers = !!flag;
@@ -580,11 +580,13 @@ void mark_servers(int flag)
1) numerous and 2) not reloaded often. We just delete
and recreate. */
if (flag)
for (serv = daemon->local_domains, up = &daemon->local_domains; serv; serv = serv->next)
for (serv = daemon->local_domains, up = &daemon->local_domains; serv; serv = next)
{
next = serv->next;
if (serv->flags & flag)
{
*up = serv->next;
*up = next;
free(serv->domain);
free(serv);
}