BUG/MINOR: server: Missing calloc return value check in srv_parse_source
Two calloc calls were not checked in the srv_parse_source function.
Considering that this function could be called at runtime through a
dynamic server creation via the CLI, this could lead to an unfortunate
crash.
It was raised in GitHub issue #1233.
It could be backported to all stable branches even though the runtime
crash could only happen on branches where dynamic server creation is
possible.
diff --git a/include/haproxy/port_range.h b/include/haproxy/port_range.h
index c0d8659..9e4379a 100644
--- a/include/haproxy/port_range.h
+++ b/include/haproxy/port_range.h
@@ -87,6 +87,8 @@
struct port_range *ret;
ret = calloc(1, sizeof(struct port_range) +
(n + 1) * sizeof(((struct port_range *)0)->ports[0]));
+ if (!ret)
+ return NULL;
ret->size = n + 1;
/* Start at the first free element */
ret->put_h = ret->put_t = n;
diff --git a/src/server.c b/src/server.c
index 49bd545..be4e6e1 100644
--- a/src/server.c
+++ b/src/server.c
@@ -1060,6 +1060,10 @@
int i;
newsrv->conn_src.sport_range = port_range_alloc_range(port_high - port_low + 1);
+ if (!newsrv->conn_src.sport_range) {
+ ha_alert("Server '%s': Out of memory (sport_range)\n", args[0]);
+ goto err;
+ }
for (i = 0; i < newsrv->conn_src.sport_range->size; i++)
newsrv->conn_src.sport_range->ports[i] = port_low + i;
}
@@ -1096,6 +1100,10 @@
newsrv->conn_src.opts |= CO_SRC_TPROXY_DYN;
free(newsrv->conn_src.bind_hdr_name);
newsrv->conn_src.bind_hdr_name = calloc(1, end - name + 1);
+ if (!newsrv->conn_src.bind_hdr_name) {
+ ha_alert("Server '%s': Out of memory (bind_hdr_name)\n", args[0]);
+ goto err;
+ }
newsrv->conn_src.bind_hdr_len = end - name;
memcpy(newsrv->conn_src.bind_hdr_name, name, end - name);
newsrv->conn_src.bind_hdr_name[end - name] = '\0';