diff options
| author | Jordan Rife <jrife@google.com> | 2023-10-04 04:13:03 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2023-10-05 00:18:27 +0300 |
| commit | cedc019b9f260facfadd20c6c490e403abf292e3 (patch) | |
| tree | 5e0edafb489721093d845bc9d69cee7a679e37f3 /fs/smb | |
| parent | 8a749fd1a8720d4619c91c8b6e7528c0a355c0aa (diff) | |
| download | linux-cedc019b9f260facfadd20c6c490e403abf292e3.tar.xz | |
smb: use kernel_connect() and kernel_bind()
Recent changes to kernel_connect() and kernel_bind() ensure that
callers are insulated from changes to the address parameter made by BPF
SOCK_ADDR hooks. This patch wraps direct calls to ops->connect() and
ops->bind() with kernel_connect() and kernel_bind() to ensure that SMB
mounts do not see their mount address overwritten in such cases.
Link: https://lore.kernel.org/netdev/9944248dba1bce861375fcce9de663934d933ba9.camel@redhat.com/
Cc: <stable@vger.kernel.org> # 6.0+
Signed-off-by: Jordan Rife <jrife@google.com>
Acked-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/smb')
| -rw-r--r-- | fs/smb/client/connect.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c index 3902e90dca6b..ce11165446cf 100644 --- a/fs/smb/client/connect.c +++ b/fs/smb/client/connect.c @@ -2895,9 +2895,9 @@ bind_socket(struct TCP_Server_Info *server) if (server->srcaddr.ss_family != AF_UNSPEC) { /* Bind to the specified local IP address */ struct socket *socket = server->ssocket; - rc = socket->ops->bind(socket, - (struct sockaddr *) &server->srcaddr, - sizeof(server->srcaddr)); + rc = kernel_bind(socket, + (struct sockaddr *) &server->srcaddr, + sizeof(server->srcaddr)); if (rc < 0) { struct sockaddr_in *saddr4; struct sockaddr_in6 *saddr6; @@ -3046,8 +3046,8 @@ generic_ip_connect(struct TCP_Server_Info *server) socket->sk->sk_sndbuf, socket->sk->sk_rcvbuf, socket->sk->sk_rcvtimeo); - rc = socket->ops->connect(socket, saddr, slen, - server->noblockcnt ? O_NONBLOCK : 0); + rc = kernel_connect(socket, saddr, slen, + server->noblockcnt ? O_NONBLOCK : 0); /* * When mounting SMB root file systems, we do not want to block in * connect. Otherwise bail out and then let cifs_reconnect() perform |