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conf, tap: False "Buffer not null terminated" positives, CWE-170

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Those strings are actually guaranteed to be NULL-terminated. Reported
by Coverity.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2022-04-05 12:33:31 +02:00
parent e46f67f152
commit ceddcac74a
2 changed files with 6 additions and 6 deletions

6
tap.c
View file

@ -798,9 +798,9 @@ static void tap_sock_unix_init(struct ctx *c)
char *path = addr.sun_path;
if (*c->sock_path)
strncpy(path, c->sock_path, UNIX_PATH_MAX);
memcpy(path, c->sock_path, UNIX_PATH_MAX);
else
snprintf(path, UNIX_PATH_MAX, UNIX_SOCK_PATH, i);
snprintf(path, UNIX_PATH_MAX - 1, UNIX_SOCK_PATH, i);
ex = socket(AF_UNIX, SOCK_STREAM | SOCK_NONBLOCK, 0);
if (ex < 0) {
@ -899,7 +899,7 @@ static int tap_ns_tun(void *arg)
int flags = O_RDWR | O_NONBLOCK | O_CLOEXEC;
struct ctx *c = (struct ctx *)arg;
strncpy(ifr.ifr_name, c->pasta_ifn, IFNAMSIZ);
memcpy(ifr.ifr_name, c->pasta_ifn, IFNAMSIZ);
if (ns_enter(c) ||
(tun_ns_fd = open("/dev/net/tun", flags)) < 0 ||