Fix integer overflow which can potentially lead to RCE.

https://www.openwall.com/lists/oss-security/2019/11/11/1
https://nvd.nist.gov/vuln/detail/CVE-2019-2201

The problem was partially fixed in 2.0.3.  This patch is a follow-up.
https://github.com/libjpeg-turbo/libjpeg-turbo/issues/388
https://github.com/libjpeg-turbo/libjpeg-turbo/commit/c30b1e72dac76343ef9029833d1561de07d29bad

diff --git a/tjbench.c b/tjbench.c
index a7d397318..13a5bde62 100644
--- a/tjbench.c
+++ b/tjbench.c
@@ -171,7 +171,7 @@ static int decomp(unsigned char *srcBuf, unsigned char **jpegBuf,
   }
   /* Set the destination buffer to gray so we know whether the decompressor
      attempted to write to it */
-  memset(dstBuf, 127, pitch * scaledh);
+  memset(dstBuf, 127, (size_t)pitch * scaledh);
 
   if (doYUV) {
     int width = doTile ? tilew : scaledw;
@@ -193,7 +193,7 @@ static int decomp(unsigned char *srcBuf, unsigned char **jpegBuf,
     double start = getTime();
 
     for (row = 0, dstPtr = dstBuf; row < ntilesh;
-         row++, dstPtr += pitch * tileh) {
+         row++, dstPtr += (size_t)pitch * tileh) {
       for (col = 0, dstPtr2 = dstPtr; col < ntilesw;
            col++, tile++, dstPtr2 += ps * tilew) {
         int width = doTile ? min(tilew, w - col * tilew) : scaledw;
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<div class='path'>path: <a href='/guix/log/?id=c2245ac23a581e3152a683da749b4dae5358d6e3'>root</a>/<a href='/guix/log/tests?id=c2245ac23a581e3152a683da749b4dae5358d6e3'>tests</a>/<a href='/guix/log/tests/elpa.scm?id=c2245ac23a581e3152a683da749b4dae5358d6e3'>elpa.scm</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/elpa.scm?id=c2245ac23a581e3152a683da749b4dae5358d6e3&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-12-02 22:09:23 +0100'>2020-12-02</span></td><td><a href='/guix/commit/tests/elpa.scm?id=bea3b17739fc591b8cf6db1f8d28a6f6c9585577'>import: utils: 'recursive-import' accepts an optional version parameter.</a><span class='msg-avail'>...</span></td><td>Martin Becze</td></tr>
<tr><td><span title='2020-01-16 23:14:05 +0100'>2020-01-16</span></td><td><a href='/guix/commit/tests/elpa.scm?id=9d6c6cb20ef240221fc9a8e155f4bfa53e71bce4'>import: elpa: Rewrite test to use an HTTP server instead of mocking.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>