diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-05-02 13:58:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-25 14:18:00 +0200 |
| commit | 53b5e27b585ecd9d657617890887cb1686153295 (patch) | |
| tree | cb988e8bbe28f6e0069235f845268d8817b0edcc | |
| parent | f98d89173f9e16dba893806e2b99c1d7e0a10ac6 (diff) | |
ipx: call ipxitf_put() in ioctl error path
commit ee0d8d8482345ff97a75a7d747efc309f13b0d80 upstream.
We should call ipxitf_put() if the copy_to_user() fails.
Reported-by: 李强 <liqiang6-s@360.cn>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/ipx/af_ipx.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c index 1b095ca37aa4..bc043dc98963 100644 --- a/net/ipx/af_ipx.c +++ b/net/ipx/af_ipx.c @@ -1168,11 +1168,10 @@ static int ipxitf_ioctl(unsigned int cmd, void __user *arg) sipx->sipx_network = ipxif->if_netnum; memcpy(sipx->sipx_node, ipxif->if_node, sizeof(sipx->sipx_node)); - rc = -EFAULT; + rc = 0; if (copy_to_user(arg, &ifr, sizeof(ifr))) - break; + rc = -EFAULT; ipxitf_put(ipxif); - rc = 0; break; } case SIOCAIPXITFCRT: |