SMB3: incorrect file id in requests compounded with open

[ Upstream commit c0d46717b95735b0eacfddbcca9df37a49de9c7a ]

See MS-SMB2 3.2.4.1.4, file ids in compounded requests should be set to
0xFFFFFFFFFFFFFFFF (we were treating it as u32 not u64 and setting
it incorrectly).

Signed-off-by: Steve French <stfrench@microsoft.com>
Reported-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 07d1c79a79eab629b41769cdf6846341e9873c6a..43478ec6fd67aee735c5b90dab63e8b9bb930f5e 100644 (file)
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -3124,10 +3124,10 @@ smb2_new_read_req(void **buf, unsigned int *total_len,
                         * Related requests use info from previous read request
                         * in chain.
                         */
-                       shdr->SessionId = 0xFFFFFFFF;
+                       shdr->SessionId = 0xFFFFFFFFFFFFFFFF;
                        shdr->TreeId = 0xFFFFFFFF;
-                       req->PersistentFileId = 0xFFFFFFFF;
-                       req->VolatileFileId = 0xFFFFFFFF;
+                       req->PersistentFileId = 0xFFFFFFFFFFFFFFFF;
+                       req->VolatileFileId = 0xFFFFFFFFFFFFFFFF;
                }
        }
        if (remaining_bytes > io_parms->length)