diff options
Diffstat (limited to 'fs/ksmbd/connection.c')
| -rw-r--r-- | fs/ksmbd/connection.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/ksmbd/connection.c b/fs/ksmbd/connection.c index af086d35398a..48b18b4ec117 100644 --- a/fs/ksmbd/connection.c +++ b/fs/ksmbd/connection.c @@ -296,10 +296,12 @@ int ksmbd_conn_handler_loop(void *p) pdu_size = get_rfc1002_len(hdr_buf); ksmbd_debug(CONN, "RFC1002 header %u bytes\n", pdu_size); - /* make sure we have enough to get to SMB header end */ - if (!ksmbd_pdu_size_has_room(pdu_size)) { - ksmbd_debug(CONN, "SMB request too short (%u bytes)\n", - pdu_size); + /* + * Check if pdu size is valid (min : smb header size, + * max : 0x00FFFFFF). + */ + if (pdu_size < __SMB2_HEADER_STRUCTURE_SIZE || + pdu_size > MAX_STREAM_PROT_LEN) { continue; } |