In do_adb_query function of drivers/macintosh/adb.c, req->data is copy form
userland. the parameter "req->data[2]" is Missing check, the array size of
adb_handler[] is 16, so "adb_handler[req->data[2]].original_address" and
"adb_handler[req->data[2]].handler_id" will lead to oob read.
diff --git a/adb.c b/adb.c_patch
index 73b3961..8a5604b 100644
--- a/adb.c
+++ b/adb.c_patch
@@ -647,7 +647,7 @@ do_adb_query(struct adb_request *req)
switch(req->data[1]) {
case ADB_QUERY_GETDEVINFO:
- if (req->nbytes < 3)
+ if (req->nbytes < 3 || req->data[2] > 16)
break;
mutex_lock(&adb_handler_mutex);
req->reply[0] = adb_handler[req-
