From 836fe215e049ee423750d3315a02742d8224eab2 Mon Sep 17 00:00:00 2001
From: Stefano Brivio <sbrivio@redhat.com>
Date: Wed, 12 Feb 2025 01:07:33 +0100
Subject: [PATCH] passt-repair: Fix off-by-one in check for number of file
descriptors
Actually, 254 is too many, but 253 isn't.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
---
passt-repair.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/passt-repair.c b/passt-repair.c
index 614cee0..1174ae3 100644
--- a/passt-repair.c
+++ b/passt-repair.c
@@ -131,7 +131,7 @@ loop:
/* No inverse formula for CMSG_LEN(x), and building one with CMSG_LEN(0)
* works but there's no guarantee it does. Search the whole domain.
*/
- for (i = 1; i < SCM_MAX_FD; i++) {
+ for (i = 1; i <= SCM_MAX_FD; i++) {
if (CMSG_LEN(sizeof(int) * i) == cmsg->cmsg_len) {
n = i;
break;