libata: zpodd: small read overflow in eject_tray()

We read from the cdb[] buffer in ata_exec_internal_sg().  It has to be
ATAPI_CDB_LEN (16) bytes long, but this buffer is only 12 bytes.

Fixes: 2133420 ("libata: handle power transition of ODD")
Signed-off-by: Dan Carpenter <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
Cc: [email protected]

Author: Dan Carpenter

drivers/ata/libata-zpodd.c

@@ -35,7 +35,7 @@ struct zpodd {
 static int eject_tray(struct ata_device *dev)
 {
 	struct ata_taskfile tf;
-	static const char cdb[] = {  GPCMD_START_STOP_UNIT,
+	static const char cdb[ATAPI_CDB_LEN] = {  GPCMD_START_STOP_UNIT,
 		0, 0, 0,
 		0x02,     /* LoEj */
 		0, 0, 0, 0, 0, 0, 0,