netdev - [PATCH V2] SUNRPC: Increase size of servername string

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Fri, 25 Mar 2022 10:18:22 +0800
From:   Haowen Bai <baihaowen@...zu.com>
To:     <trond.myklebust@...merspace.com>, <anna@...nel.org>,
        <chuck.lever@...cle.com>, <davem@...emloft.net>, <kuba@...nel.org>,
        <pabeni@...hat.com>
CC:     <linux-nfs@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Haowen Bai <baihaowen@...zu.com>
Subject: [PATCH V2] SUNRPC: Increase size of servername string

This patch will fix the warning from smatch:

net/sunrpc/clnt.c:562 rpc_create() error: snprintf() chops off
the last chars of 'sun->sun_path': 108 vs 48

Signed-off-by: Haowen Bai <baihaowen@...zu.com>
---
V1->V2: it would be much nicer to use UNIX_PATH_MAX
 net/sunrpc/clnt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index c83fe61..6e0209e 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -526,7 +526,7 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
 		.servername = args->servername,
 		.bc_xprt = args->bc_xprt,
 	};
-	char servername[48];
+	char servername[UNIX_PATH_MAX];
 	struct rpc_clnt *clnt;
 	int i;
 
-- 
2.7.4