Blame SOURCES/0006-handle-Check-that-pages-do-not-extend-beyond-the-end.patch
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From 5c718aab579d693ea3169ab4d29b5c3bc9105aa1 Mon Sep 17 00:00:00 2001
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From: "Richard W.M. Jones" <rjones@redhat.com>
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Date: Thu, 30 Oct 2014 14:02:25 +0000
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Subject: [PATCH 06/15] handle: Check that pages do not extend beyond the end
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of the file.
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Thanks: Mahmoud Al-Qudsi
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(cherry picked from commit 4bbdf555f88baeae0fa804a369a81a83908bd705)
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---
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lib/handle.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/lib/handle.c b/lib/handle.c
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index a3cbcf7..3a8f09b 100644
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--- a/lib/handle.c
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+++ b/lib/handle.c
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@@ -247,6 +247,13 @@ hivex_open (const char *filename, int flags)
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goto error;
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}
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+ if (off + page_size > h->size) {
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+ SET_ERRNO (ENOTSUP,
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+ "%s: page size %zu at 0x%zx extends beyond end of file, bad registry",
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+ filename, page_size, off);
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+ goto error;
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+ }
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+
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/* Read the blocks in this page. */
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size_t blkoff;
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struct ntreg_hbin_block *block;
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--
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1.8.3.1
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