wow64: Push a valid return address when calling KiRaiseUserExceptionDispatcher.

96841d03 · Alexandre Julliard · 419e4d69 · 96841d03
Commit 96841d03 authored Mar 07, 2023 by Alexandre Julliard
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syscall.c dlls/wow64/syscall.c +2 -0

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--- a/dlls/wow64/syscall.c
+++ b/dlls/wow64/syscall.c
@@ -278,6 +278,8 @@ static void call_raise_user_exception_dispatcher( ULONG code )
            I386_CONTEXT ctx = { CONTEXT_I386_ALL };

            pBTCpuGetContext( GetCurrentThread(), GetCurrentProcess(), NULL, &ctx );
+            ctx.Esp -= sizeof(ULONG);
+            *(ULONG *)ULongToPtr( ctx.Esp ) = ctx.Eip;
            ctx.Eip = (ULONG_PTR)pKiRaiseUserExceptionDispatcher;
            pBTCpuSetContext( GetCurrentThread(), GetCurrentProcess(), NULL, &ctx );
        }