diff mbox series

[5.12,211/296] SMB3: incorrect file id in requests compounded with open

Message ID 20210531130710.951904835@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg KH May 31, 2021, 1:14 p.m. UTC 
From: Steve French <stfrench@microsoft.com>

[ 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>
---
 fs/cifs/smb2pdu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 20b353429e69..7606ce344de5 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -3907,10 +3907,10 @@  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)