* [PATCH] passt-repair: Fix off-by-one in check for number of file descriptors
@ 2025-02-12 0:08 Stefano Brivio
0 siblings, 0 replies; only message in thread
From: Stefano Brivio @ 2025-02-12 0:08 UTC (permalink / raw)
To: passt-dev; +Cc: David Gibson
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 0f03506..ba0c48b 100644
--- a/passt-repair.c
+++ b/passt-repair.c
@@ -132,7 +132,7 @@ 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;
--
@@ -132,7 +132,7 @@ 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;
--
2.43.0
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2025-02-12 0:08 [PATCH] passt-repair: Fix off-by-one in check for number of file descriptors Stefano Brivio
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