Messages in this thread Patch in this message | | | From | Wang Hai <> | Subject | [PATCH net] net/9p: Fix a potential socket leak in p9_socket_open | Date | Thu, 24 Nov 2022 16:10:05 +0800 |
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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> --- net/9p/trans_fd.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c index 56a186768750..f834726d21ea 100644 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@ -860,8 +860,10 @@ 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); -- 2.17.1
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