netdev - [iproute PATCH v3 2/6] ss: Make sure scanned index value to unix_state

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Date:   Thu, 24 Aug 2017 11:41:27 +0200
From:   Phil Sutter <phil@....cc>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev@...r.kernel.org
Subject: [iproute PATCH v3 2/6] ss: Make sure scanned index value to unix_state_map is sane

Signed-off-by: Phil Sutter <phil@....cc>
---
 misc/ss.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/misc/ss.c b/misc/ss.c
index c41d5169aba52..951aa877bcb01 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;
-- 
2.13.1