ss: Make sure scanned index value to unix_state_map is sane

Signed-off-by: Phil Sutter <phil@nwl.cc>

1 files changed, 2 insertions, 1 deletions

diff --git a/misc/ss.c b/misc/ss.c
index be498ebe..fcc3cf92 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -3148,7 +3148,8 @@ static int unix_show(struct filter *f)
 
 		if (flags & (1 << 16)) {
 			u->state = SS_LISTEN;
-		} else {
+		} else if (u->state > 0 &&
+			   u->state <= ARRAY_SIZE(unix_state_map)) {
 			u->state = unix_state_map[u->state-1];
 			if (u->type == SOCK_DGRAM && u->state == SS_CLOSE && u->rport)
 				u->state = SS_ESTABLISHED;