37 lines
1001 B
Diff
37 lines
1001 B
Diff
From 63dbf6b3b9e6e781df1a6a64e609b10e23969681 Mon Sep 17 00:00:00 2001
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From: Paul Eggert <eggert@cs.ucla.edu>
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Date: Wed, 15 Apr 2026 12:00:17 -0700
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Subject: gzip: don’t mishandle .lzh after .Z
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Problem reported by Michał Majchrowicz.
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* unlzh.c (read_c_len): Clear left and right when n == 0.
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---
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NEWS | 4 ++++
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THANKS | 1 +
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unlzh.c | 6 ++++++
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3 files changed, 11 insertions(+)
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diff --git a/unlzh.c b/unlzh.c
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index 2522764..c3e92ff 100644
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--- a/unlzh.c
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+++ b/unlzh.c
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@@ -313,6 +307,12 @@ decode_p ()
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local void huf_decode_start()
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{
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+ /* Needed in case LEFT and RIGHT are reused from a previous
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+ LZW decompression. It may be overkill to clear all of both
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+ arrays, but nobody has had time to analyze this carefully. */
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+ memzero (left, (2 * NC - 1) * sizeof *left);
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+ memzero (right, (2 * NC - 1) * sizeof *right);
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+
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init_getbits(); blocksize = 0;
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}
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--
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cgit v1.3
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