33 lines
999 B
Diff
33 lines
999 B
Diff
From 4393a756cea723e6d4b2fa70310f64a2e1303f94 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Josef=20M=C3=B6llers?= <josef.moellers@suse.com>
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Date: Mon, 26 Mar 2018 12:27:34 +0200
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Subject: [PATCH 01/19] zzip_mem_entry_new(): if compressed size is too big,
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bail out.
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---
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zzip/memdisk.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/zzip/memdisk.c b/zzip/memdisk.c
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index 8d5743d..7c59602 100644
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--- a/zzip/memdisk.c
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+++ b/zzip/memdisk.c
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@@ -222,6 +222,14 @@ zzip_mem_entry_new(ZZIP_DISK * disk, ZZIP_DISK_ENTRY * entry)
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item->zz_filetype = zzip_disk_entry_get_filetype(entry);
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/*
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+ * If zz_data+zz_csize exceeds the size of the file, bail out
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+ */
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+ if ((item->zz_data + item->zz_csize) < disk->buffer ||
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+ (item->zz_data + item->zz_csize) >= disk->endbuf)
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+ {
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+ goto error;
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+ }
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+ /*
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* If the file is uncompressed, zz_csize and zz_usize should be the same
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* If they are not, we cannot guarantee that either is correct, so ...
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*/
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--
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2.22.0
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