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[iproute,v3,1/6] ipaddress: Avoid accessing uninitialized variable lcl

Message ID 20170821092704.21614-2-phil@nwl.cc
State Accepted, archived
Delegated to: stephen hemminger
Headers show

Commit Message

Phil Sutter Aug. 21, 2017, 9:26 a.m. UTC 
If no address was given, ipaddr_modify() accesses uninitialized data
when assigning to req.ifa.ifa_prefixlen.

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 ip/ipaddress.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index 4d37c5e045071..c9312f06dbd4d 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -1888,7 +1888,7 @@  static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
 	char  *lcl_arg = NULL;
 	char  *valid_lftp = NULL;
 	char  *preferred_lftp = NULL;
-	inet_prefix lcl;
+	inet_prefix lcl = {};
 	inet_prefix peer;
 	int local_len = 0;
 	int peer_len = 0;