Make sure that there is extra information in the exception record

before accessing it in check_resource_write.

Make sure that there is extra information in the exception record
23ff2d51 · Alexandre Julliard · 5e07be4e · 23ff2d51
Commit 23ff2d51 authored Jan 28, 2004 by Alexandre Julliard
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except.c dlls/kernel/except.c +1 -0

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--- a/dlls/kernel/except.c
+++ b/dlls/kernel/except.c
@@ -415,6 +415,7 @@ inline static BOOL check_resource_write( const EXCEPTION_RECORD *rec )
    MEMORY_BASIC_INFORMATION info;

    if (rec->ExceptionCode != EXCEPTION_ACCESS_VIOLATION) return FALSE;
+    if (rec->NumberParameters < 2) return FALSE;
    if (!rec->ExceptionInformation[0]) return FALSE;  /* not a write access */
    addr = (void *)rec->ExceptionInformation[1];
    if (!VirtualQuery( addr, &info, sizeof(info) )) return FALSE;