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authorGuoqing Jiang <gqjiang@suse.com>2018-10-19 12:08:22 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-12-08 13:05:09 +0100
commit5acc58cd99489cf3b511741078802cccd2eb8ca6 (patch)
tree62c150cb95bfd4d68003c3c14841ddad0da02983 /net/tipc
parent11de2fae3441670b5b9d7a287a33bfb6dff93af5 (diff)
tipc: use destination length for copy string
commit 29e270fc32192e7729057963ae7120663856c93e upstream. Got below warning with gcc 8.2 compiler. net/tipc/topsrv.c: In function ‘tipc_topsrv_start’: net/tipc/topsrv.c:660:2: warning: ‘strncpy’ specified bound depends on the length of the source argument [-Wstringop-overflow=] strncpy(srv->name, name, strlen(name) + 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/tipc/topsrv.c:660:27: note: length computed here strncpy(srv->name, name, strlen(name) + 1); ^~~~~~~~~~~~ So change it to correct length and use strscpy. Signed-off-by: Guoqing Jiang <gqjiang@suse.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/tipc')
-rw-r--r--net/tipc/subscr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index c2646446e157..d62affeb2a38 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -389,7 +389,7 @@ int tipc_topsrv_start(struct net *net)
topsrv->tipc_conn_new = tipc_subscrb_connect_cb;
topsrv->tipc_conn_release = tipc_subscrb_release_cb;
- strncpy(topsrv->name, name, strlen(name) + 1);
+ strscpy(topsrv->name, name, sizeof(topsrv->name));
tn->topsrv = topsrv;
atomic_set(&tn->subscription_count, 0);