[reactos] 01/01: [COMCTL32] Fix crash on SB_GETPARTS

[Mark Jansen]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=0ae3805375aaef8f0cb5a…

commit 0ae3805375aaef8f0cb5a769dbd5e305d83607bd
Author:     Mark Jansen <mark.jansen(a)reactos.org>
AuthorDate: Mon Nov 1 22:46:12 2021 +0100
Commit:     Mark Jansen <mark.jansen(a)reactos.org>
CommitDate: Wed Nov 10 17:29:35 2021 +0100

    [COMCTL32] Fix crash on SB_GETPARTS
    
    wParam (num_parts) is allowed to be bigger than the actual amount of parts
    CORE-17842
---
 dll/win32/comctl32/status.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dll/win32/comctl32/status.c b/dll/win32/comctl32/status.c
index 6ef04a66282..45d2e265357 100644
--- a/dll/win32/comctl32/status.c
+++ b/dll/win32/comctl32/status.c
@@ -432,6 +432,10 @@ STATUSBAR_GetParts (const STATUS_INFO *infoPtr, INT num_parts, INT
parts[])
 
     TRACE("(%d)\n", num_parts);
     if (parts) {
+#ifdef __REACTOS__
+        if (num_parts > infoPtr->numParts)
+            num_parts = infoPtr->numParts;
+#endif
 	for (i = 0; i < num_parts; i++) {
 	    parts[i] = infoPtr->parts[i].x;
 	}