23 lines
817 B
Diff
23 lines
817 B
Diff
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diff -r c21b18b97a61 tools/libxc/xc_domain_restore.c
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--- a/tools/libxc/xc_domain_restore.c Tue Jun 05 17:05:13 2007 +0100
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+++ b/tools/libxc/xc_domain_restore.c Tue Jun 05 17:40:40 2007 +0100
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@@ -903,13 +903,14 @@ int xc_domain_restore(int xc_handle, int
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/* Get the list of PFNs that are not in the psuedo-phys map */
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{
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- unsigned int count;
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+ unsigned int count = 0;
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unsigned long *pfntab;
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int nr_frees, rc;
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- if ( !read_exact(io_fd, &count, sizeof(count)) )
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- {
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- ERROR("Error when reading pfn count");
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+ if ( !read_exact(io_fd, &count, sizeof(count)) ||
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+ (count > (1U << 28)) ) /* up to 1TB of address space */
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+ {
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+ ERROR("Error when reading pfn count (= %u)", count);
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goto out;
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}
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