smbd:smb2: add some asserts before decrementing the counters

Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

diff --git a/source3/smbd/smb2_server.c b/source3/smbd/smb2_server.c
index ae125dffefcb77ebbd829ab10b3d1738a58809d3..8a4aa96fe9ce52ecb6b3d95bb687fec3efcfe7bf 100644 (file)
--- a/source3/smbd/smb2_server.c
+++ b/source3/smbd/smb2_server.c
@@ -2704,8 +2704,10 @@ static void smbd_smb2_request_reply_update_counts(struct smbd_smb2_request *req)
        channel_sequence = SVAL(inhdr, SMB2_HDR_CHANNEL_SEQUENCE);
 
        if (op->global->channel_sequence == channel_sequence) {
+               SMB_ASSERT(op->request_count > 0);
                op->request_count -= 1;
        } else {
+               SMB_ASSERT(op->pre_request_count > 0);
                op->pre_request_count -= 1;
        }
 }