SMB3: GUIDs should be constructed as random but valid uuids
GUIDs although random, and 16 bytes, need to be generated as
proper uuids.
Signed-off-by: Steve French <steve.french@primarydata.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Reported-by: David Goebels <davidgoe@microsoft.com>
CC: Stable <stable@vger.kernel.org>
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index cca04e7..978dbf0 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -271,7 +271,7 @@
cifs_inode->createtime = 0;
cifs_inode->epoch = 0;
#ifdef CONFIG_CIFS_SMB2
- get_random_bytes(cifs_inode->lease_key, SMB2_LEASE_KEY_SIZE);
+ generate_random_uuid(cifs_inode->lease_key);
#endif
/*
* Can not set i_flags here - they get immediately overwritten to zero