diff options
| author | Wang Hai <wanghai38@huawei.com> | 2022-11-24 11:10:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-08 13:23:56 +0300 |
| commit | e01c1542379fb395e7da53706df598f38905dfbf (patch) | |
| tree | b198c65fe4723f993490941437f00452bcf75369 /net/9p | |
| parent | b080d4668f3f00298077ab32ec50b1128239d421 (diff) | |
| download | linux-e01c1542379fb395e7da53706df598f38905dfbf.tar.xz | |
net/9p: Fix a potential socket leak in p9_socket_open
[ Upstream commit dcc14cfd7debe11b825cb077e75d91d2575b4cb8 ]
Both p9_fd_create_tcp() and p9_fd_create_unix() will call
p9_socket_open(). If the creation of p9_trans_fd fails,
p9_fd_create_tcp() and p9_fd_create_unix() will return an
error directly instead of releasing the cscoket, which will
result in a socket leak.
This patch adds sock_release() to fix the leak issue.
Fixes: 6b18662e239a ("9p connect fixes")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
ACKed-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/9p')
| -rw-r--r-- | net/9p/trans_fd.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c index 400219801e63..deb66635f0f3 100644 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@ -852,8 +852,10 @@ static int p9_socket_open(struct p9_client *client, struct socket *csocket) struct file *file; p = kzalloc(sizeof(struct p9_trans_fd), GFP_KERNEL); - if (!p) + if (!p) { + sock_release(csocket); return -ENOMEM; + } csocket->sk->sk_allocation = GFP_NOIO; file = sock_alloc_file(csocket, 0, NULL); |