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--- base/gsmalloc.c.orig 2009-08-18 20:41:17 UTC
+++ base/gsmalloc.c
@@ -174,7 +174,7 @@ gs_heap_alloc_bytes(gs_memory_t * mem, u
} else {
uint added = size + sizeof(gs_malloc_block_t);
- if (mmem->limit - added < mmem->used)
+ if (added <= size || mmem->limit - added < mmem->used)
set_msg("exceeded limit");
else if ((ptr = (byte *) malloc(added)) == 0)
set_msg("failed");
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