Copied from Fedora.

http://pkgs.fedoraproject.org/cgit/unzip.git/plain/unzip-6.0-overflow.patch?id=d18f821e

diff --git a/extract.c b/extract.c
index a0a4929..9ef80b3 100644
--- a/extract.c
+++ b/extract.c
@@ -2214,6 +2214,7 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata)
     ulg eb_ucsize;
     uch *eb_ucptr;
     int r;
+    ush method;
 
     if (compr_offset < 4)                /* field is not compressed: */
         return PK_OK;                    /* do nothing and signal OK */
@@ -2223,6 +2224,12 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata)
          eb_size <= (compr_offset + EB_CMPRHEADLEN)))
         return IZ_EF_TRUNC;               /* no compressed data! */
 
+    method = makeword(eb + (EB_HEADSIZE + compr_offset));
+    if ((method == STORED) && (eb_size != compr_offset + EB_CMPRHEADLEN + eb_ucsize))
+        return PK_ERR;            /* compressed & uncompressed
+                                   * should match in STORED
+                                   * method */
+
     if (
 #ifdef INT_16BIT
         (((ulg)(extent)eb_ucsize) != eb_ucsize) ||
84732'>refs</a><a class='active' href='/guix/log/tests/guix-graph.sh'>log</a><a href='/guix/tree/tests/guix-graph.sh?id=c4618ca13f1cefeb1dbfe619ca09f32925b84732'>tree</a><a href='/guix/commit/tests/guix-graph.sh?id=c4618ca13f1cefeb1dbfe619ca09f32925b84732'>commit</a><a href='/guix/diff/tests/guix-graph.sh?id=c4618ca13f1cefeb1dbfe619ca09f32925b84732'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/guix-graph.sh'>
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<div class='path'>path: <a href='/guix/log/?id=c4618ca13f1cefeb1dbfe619ca09f32925b84732'>root</a>/<a href='/guix/log/tests?id=c4618ca13f1cefeb1dbfe619ca09f32925b84732'>tests</a>/<a href='/guix/log/tests/guix-graph.sh?id=c4618ca13f1cefeb1dbfe619ca09f32925b84732'>guix-graph.sh</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/tests/guix-graph.sh?id=c4618ca13f1cefeb1dbfe619ca09f32925b84732&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-01-16 23:56:56 +0100'>2022-01-16</span></td><td><a href='/guix/commit/tests/guix-graph.sh?id=a1037aa87b39d4c774fe398fc97a58bafeb063d1'>tests: Clean up after 'tests/guix-graph.sh'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-09-28 21:06:36 -0500'>2020-09-28</span></td><td><a href='/guix/commit/tests/guix-graph.sh?id=d8934360d2453a403b5433e71d09188e4ed23b57'>tests: Simplify shell exit status negation;</a><span class='msg-avail'>...</span></td><td>Eric Bavier</td></tr>