[Bug 57463] winebus always crashing with unknown since 8b41c2cfddba1f9973246f61e39d4a4d92912da5

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57463

--- Comment #1 from TOM  ---
This seems fix the crash issue.

diff --git a/dlls/winebus.sys/main.c b/dlls/winebus.sys/main.c
index 2522e2e6b8b..cac2eed6a12 100644
--- a/dlls/winebus.sys/main.c
+++ b/dlls/winebus.sys/main.c
@@ -597,7 +597,8 @@ static void process_hid_report(DEVICE_OBJECT *device, BYTE
*report_buf, DWORD re

if (!ext->collection_desc.ReportIDs[0].ReportID) last_report =
ext->last_reports[0];
     else last_report = ext->last_reports[report_buf[0]];
-    memcpy(last_report->buffer, report_buf, report_len);
+    if (last_report != NULL)
+        memcpy(last_report->buffer, report_buf, report_len);

if ((irp = pop_pending_read(ext)))
     {