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-rw-r--r--p11-kit/virtual.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/p11-kit/virtual.c b/p11-kit/virtual.c
index 2f4f0ae..bb0d845 100644
--- a/p11-kit/virtual.c
+++ b/p11-kit/virtual.c
@@ -54,6 +54,13 @@
* not be defined. This is checked in configure.ac
*/
+/*
+ * Since libffi uses shared memory to store that, releasing it
+ * will cause issues on any other child or parent process that relies
+ * on that. Don't release it.
+ */
+#define LIBFFI_FREE_CLOSURES 0
+
#include "ffi.h"
#ifndef FFI_CLOSURES
#error "FFI_CLOSURES should be checked in configure.ac"
@@ -2718,6 +2725,7 @@ init_wrapper_funcs (Wrapper *wrapper)
return true;
}
+#if LIBFFI_FREE_CLOSURES
static void
uninit_wrapper_funcs (Wrapper *wrapper)
{
@@ -2726,6 +2734,7 @@ uninit_wrapper_funcs (Wrapper *wrapper)
for (i = 0; i < wrapper->ffi_used; i++)
ffi_closure_free (wrapper->ffi_closures[i]);
}
+#endif
CK_FUNCTION_LIST *
p11_virtual_wrap (p11_virtual *virt,
@@ -2792,7 +2801,9 @@ p11_virtual_unwrap (CK_FUNCTION_LIST_PTR module)
if (wrapper->destroyer)
(wrapper->destroyer) (wrapper->virt);
+#if LIBFFI_FREE_CLOSURES
uninit_wrapper_funcs (wrapper);
+#endif
free (wrapper);
}