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hid: Check preparsed data magic in HidP_GetLinkCollectionNodes. 

Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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Rémi Bernon 2021-06-10 10:06:24 +02:00 committed by Alexandre Julliard
parent b99da49a75
commit dec362a766
1 changed files with 3 additions and 0 deletions
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dlls/hid/hidp.c
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@ -1001,6 +1001,9 @@ NTSTATUS WINAPI HidP_GetLinkCollectionNodes(HIDP_LINK_COLLECTION_NODE *LinkColle
TRACE("(%p, %p, %p)\n", LinkCollectionNode, LinkCollectionNodeLength, PreparsedData); TRACE("(%p, %p, %p)\n", LinkCollectionNode, LinkCollectionNodeLength, PreparsedData);
if (data->magic != HID_MAGIC)
return HIDP_STATUS_INVALID_PREPARSED_DATA;
if (*LinkCollectionNodeLength < data->caps.NumberLinkCollectionNodes) if (*LinkCollectionNodeLength < data->caps.NumberLinkCollectionNodes)
return HIDP_STATUS_BUFFER_TOO_SMALL; return HIDP_STATUS_BUFFER_TOO_SMALL;