30 lines
863 B
Diff
30 lines
863 B
Diff
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commit ce49cfb48ad5e9cac79819d0ccde4394c237af25
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Author: Eric Blake <eblake@redhat.com>
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Date: Wed Jun 2 09:03:57 2010 -0600
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bitmap: reject zero-size bitmap
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* src/util/bitmap.c (virBitmapAlloc): Tighten sanity check.
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diff --git a/src/util/bitmap.c b/src/util/bitmap.c
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index 69094a5..44edb49 100644
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--- a/src/util/bitmap.c
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+++ b/src/util/bitmap.c
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@@ -1,6 +1,7 @@
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/*
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* bitmap.h: Simple bitmap operations
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*
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+ * Copyright (C) 2010 Red Hat, Inc.
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* Copyright (C) 2010 Novell, Inc.
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*
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* This library is free software; you can redistribute it and/or
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@@ -58,7 +59,7 @@ virBitmapPtr virBitmapAlloc(size_t size)
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virBitmapPtr bitmap;
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size_t sz;
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- if (SIZE_MAX - VIR_BITMAP_BITS_PER_UNIT < size)
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+ if (SIZE_MAX - VIR_BITMAP_BITS_PER_UNIT < size || size == 0)
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return NULL;
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sz = (size + VIR_BITMAP_BITS_PER_UNIT - 1) /
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