server: Handle duplicate handles when inheriting them for the new process.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=50004Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

server: Handle duplicate handles when inheriting them for the new process.
2a7a1bbe · Nikolay Sivov · Alexandre Julliard · b4ca2d00 · 2a7a1bbe
Commit 2a7a1bbe authored Oct 19, 2020 by Nikolay Sivov Committed by Alexandre Julliard Oct 19, 2020
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handle.c server/handle.c +2 -1

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--- a/server/handle.c
+++ b/server/handle.c
@@ -363,8 +363,9 @@ static void inherit_handle( struct process *parent, const obj_handle_t handle, s
    src = get_handle( parent, handle );
    if (!src || !(src->access & RESERVED_INHERIT)) return;
-    grab_object_for_handle( src->ptr );
    index = handle_to_index( handle );
+    if (dst[index].ptr) return;
+    grab_object_for_handle( src->ptr );
    dst[index] = *src;
    table->last = max( table->last, index );
 }