[PATCH 1/5] hid: Check preparsed data magic in HidP_GetLinkCollectionNodes.
Rémi Bernon
rbernon at codeweavers.com
Thu Jun 10 03:06:24 CDT 2021
Signed-off-by: Rémi Bernon <rbernon at codeweavers.com>
---
dlls/hid/hidp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/dlls/hid/hidp.c b/dlls/hid/hidp.c
index a7003717a21..2933c2ff7ef 100644
--- a/dlls/hid/hidp.c
+++ b/dlls/hid/hidp.c
@@ -1001,6 +1001,9 @@ NTSTATUS WINAPI HidP_GetLinkCollectionNodes(HIDP_LINK_COLLECTION_NODE *LinkColle
TRACE("(%p, %p, %p)\n", LinkCollectionNode, LinkCollectionNodeLength, PreparsedData);
+ if (data->magic != HID_MAGIC)
+ return HIDP_STATUS_INVALID_PREPARSED_DATA;
+
if (*LinkCollectionNodeLength < data->caps.NumberLinkCollectionNodes)
return HIDP_STATUS_BUFFER_TOO_SMALL;
--
2.31.0
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