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authorSteven Barth <steven@midlink.org>2015-04-14 10:31:10 +0200
committerSteven Barth <steven@midlink.org>2015-04-14 10:31:10 +0200
commita06dd6481cd046e4856774ac32cdc11f4bc721e2 (patch)
tree28ad21b0e6ea51cd1eb9546959ffc20431aaf702 /src/dhcpv4.c
parente23972527f93a3d2a5412400384519ff550708b7 (diff)
Fix potential invalid memory access
Diffstat (limited to 'src/dhcpv4.c')
-rw-r--r--src/dhcpv4.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/dhcpv4.c b/src/dhcpv4.c
index 04ef182..647cdc0 100644
--- a/src/dhcpv4.c
+++ b/src/dhcpv4.c
@@ -637,7 +637,7 @@ static struct dhcpv4_assignment* dhcpv4_lease(struct interface *iface,
} else if (msg == DHCPV4_MSG_RELEASE) {
if (a && a->valid_until != LONG_MAX)
a->valid_until = 0;
- } else if (msg == DHCPV4_MSG_DECLINE && a->valid_until != LONG_MAX) {
+ } else if (msg == DHCPV4_MSG_DECLINE && a && a->valid_until != LONG_MAX) {
memset(a->hwaddr, 0, sizeof(a->hwaddr));
a->valid_until = now + 3600; // Block address for 1h
}