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authorHristo Venev <hristo@venev.name>2015-10-29 12:14:44 +0200
committerHristo Venev <hristo@venev.name>2015-10-29 12:18:02 +0200
commit4701725cd58bc75a287ba050c8ad69a457b68d5d (patch)
tree191461f69227e09863defd1ff77877885632026b /src
parent2c80779e33e2bea8e335f3c93b144f671d6bc62c (diff)
network: fix use-after-free in link_free
Freeing a link removes it both from addresses and addresses_foreign, causing SIGSEGV if one of the sets is freed.
Diffstat (limited to 'src')
-rw-r--r--src/network/networkd-link.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index dcc2569660..12ca02868d 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -349,12 +349,12 @@ static void link_free(Link *link) {
while (!set_isempty(link->addresses))
address_free(set_first(link->addresses));
- set_free(link->addresses);
-
while (!set_isempty(link->addresses_foreign))
address_free(set_first(link->addresses_foreign));
- set_free(link->addresses_foreign);
+ link->addresses = set_free(link->addresses);
+
+ link->addresses_foreign = set_free(link->addresses_foreign);
while ((address = link->pool_addresses)) {
LIST_REMOVE(addresses, link->pool_addresses, address);