From: Ronnie Sahlberg <lsahl...@redhat.com>
[ Upstream commit fada37f6f62995cc449b36ebba1220594bfe55fe ]
We use a spinlock while we are reading and accessing the destination address
for a server.
We need to also use this spinlock to protect when we are modifying this address
from
reconn_set_ipaddr().
Signed-off-by: Ronnie Sahlberg <lsahl...@redhat.com>
Reviewed-by: Jeff Layton <jlay...@kernel.org>
Signed-off-by: Steve French <stfre...@microsoft.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
fs/cifs/connect.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 4804d1df8c1cf..d4a23b48e24d8 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -375,8 +375,10 @@ static int reconn_set_ipaddr(struct TCP_Server_Info
*server)
return rc;
}
+ spin_lock(&cifs_tcp_ses_lock);
rc = cifs_convert_address((struct sockaddr *)&server->dstaddr, ipaddr,
strlen(ipaddr));
+ spin_unlock(&cifs_tcp_ses_lock);
kfree(ipaddr);
return !rc ? -1 : 0;
--
2.20.1
