28 lines
723 B
Diff
28 lines
723 B
Diff
From dddf5d485e534c1f70d795ff37a0b2dba42e442a Mon Sep 17 00:00:00 2001
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From: herengui <herengui@uniontech.com>
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Date: Mon, 7 Feb 2022 10:26:11 +0800
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Subject: [PATCH] fix stack-overflow in process_incl_chunk
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Signed-off-by: herengui <herengui@uniontech.com>
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---
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libdjvu/DjVuFile.cpp | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/libdjvu/DjVuFile.cpp b/libdjvu/DjVuFile.cpp
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index d5be2e5..e9deef9 100644
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--- a/libdjvu/DjVuFile.cpp
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+++ b/libdjvu/DjVuFile.cpp
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@@ -566,6 +566,9 @@ DjVuFile::process_incl_chunk(ByteStream & str, int file_num)
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incl_str.setat(incl_str.length()-1, 0);
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}
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+ if (!incl_str.is_valid())
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+ return 0;
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+
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if (incl_str.length()>0)
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{
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if (strchr(incl_str, '/'))
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--
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2.20.1
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