From: Stefano Brivio <sbrivio@redhat.com>
To: passt-dev@passt.top
Cc: Matej Hrica <mhrica@redhat.com>
Subject: [PATCH 1/4] conf: Copy up to MAXDNSRCH - 1 bytes, not MAXDNSRCH
Date: Thu, 27 Jun 2024 01:45:33 +0200 [thread overview]
Message-ID: <20240626234536.3306466-2-sbrivio@redhat.com> (raw)
In-Reply-To: <20240626234536.3306466-1-sbrivio@redhat.com>
Spotted by Coverity just recently. Not that it really matters as
MAXDNSRCH always appears to be defined as 1025, while a full domain
name can have up to 253 characters: it would be a bit pointless to
have a longer search domain.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
---
conf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/conf.c b/conf.c
index e1f5422..9e47e9a 100644
--- a/conf.c
+++ b/conf.c
@@ -453,7 +453,7 @@ static void get_dns(struct ctx *c)
while (s - c->dns_search < ARRAY_SIZE(c->dns_search) - 1
/* cppcheck-suppress strtokCalled */
&& (p = strtok(NULL, " \t"))) {
- strncpy(s->n, p, sizeof(c->dns_search[0]));
+ strncpy(s->n, p, sizeof(c->dns_search[0]) - 1);
s++;
*s->n = 0;
}
--
@@ -453,7 +453,7 @@ static void get_dns(struct ctx *c)
while (s - c->dns_search < ARRAY_SIZE(c->dns_search) - 1
/* cppcheck-suppress strtokCalled */
&& (p = strtok(NULL, " \t"))) {
- strncpy(s->n, p, sizeof(c->dns_search[0]));
+ strncpy(s->n, p, sizeof(c->dns_search[0]) - 1);
s++;
*s->n = 0;
}
--
2.43.0
next prev parent reply other threads:[~2024-06-26 23:45 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-26 23:45 [PATCH 0/4] Small, assorted "hardening" fixes Stefano Brivio
2024-06-26 23:45 ` Stefano Brivio [this message]
2024-06-27 0:45 ` [PATCH 1/4] conf: Copy up to MAXDNSRCH - 1 bytes, not MAXDNSRCH David Gibson
2024-06-27 7:27 ` Stefano Brivio
2024-06-27 10:11 ` David Gibson
2024-06-26 23:45 ` [PATCH 2/4] tcp_splice: Check return value of setsockopt() for SO_RCVLOWAT Stefano Brivio
2024-06-27 0:46 ` David Gibson
2024-06-26 23:45 ` [PATCH 3/4] util, lineread, tap: Overflow checks on long signed sums and subtractions Stefano Brivio
2024-06-27 1:13 ` David Gibson
2024-06-27 7:55 ` Stefano Brivio
2024-06-27 20:46 ` Stefano Brivio
2024-06-28 7:15 ` David Gibson
2024-06-28 7:11 ` David Gibson
2024-06-28 7:55 ` Stefano Brivio
2024-06-28 18:30 ` Stefano Brivio
2024-07-08 13:01 ` Stefano Brivio
2024-06-26 23:45 ` [PATCH 4/4] tap: Drop frames from guest whose length is more than remaining buffer Stefano Brivio
2024-06-27 1:30 ` David Gibson
2024-06-27 8:21 ` Stefano Brivio
2024-06-28 7:19 ` David Gibson
2024-06-28 7:56 ` Stefano Brivio
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