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| author | Vasyl Gomonovych <gomonovych@gmail.com> | 2017-12-21 16:57:52 +0100 |
|---|---|---|
| committer | Casey Schaufler <casey@schaufler-ca.com> | 2017-12-27 23:43:19 +0100 |
| commit | da49b5dad18aad357ab8841ee65d415f683efc6f (patch) | |
| tree | 244ed6c95034085c102d3c1a26c47573259ff962 /security/smack | |
| parent | Sync to v4.15-rc3 for security subsystem developers to work against. (diff) | |
| download | linux-da49b5dad18aad357ab8841ee65d415f683efc6f.tar.xz linux-da49b5dad18aad357ab8841ee65d415f683efc6f.zip | |
Smack: fix dereferenced before check
This patch fixes the warning reported by smatch:
security/smack/smack_lsm.c:2872 smack_socket_connect() warn:
variable dereferenced before check 'sock->sk' (see line 2869)
Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Diffstat (limited to 'security/smack')
| -rw-r--r-- | security/smack/smack_lsm.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 14cc7940b36d..30f2c3d1c11c 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -2866,12 +2866,16 @@ static int smack_socket_connect(struct socket *sock, struct sockaddr *sap, #endif #ifdef SMACK_IPV6_SECMARK_LABELING struct smack_known *rsp; - struct socket_smack *ssp = sock->sk->sk_security; + struct socket_smack *ssp; #endif if (sock->sk == NULL) return 0; +#ifdef SMACK_IPV6_SECMARK_LABELING + ssp = sock->sk->sk_security; +#endif + switch (sock->sk->sk_family) { case PF_INET: if (addrlen < sizeof(struct sockaddr_in)) |