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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - signed integer in libfuzzer"
href="https://llvm.org/bugs/show_bug.cgi?id=30214">30214</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>signed integer in libfuzzer
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nlewycky@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Here's a transcript showing the bug:
localhost ~ # cat fuzz-2.log
INFO: Seed: 781050651
INFO: -max_len is not provided, using 171
#0 READ units: 54 exec/s: 0
#54 INITED cov: 87 bits: 97 indir: 7 units: 45 exec/s: 0
#2048 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1024
#4096 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1024
#8192 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1170
#16384 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1092
#32768 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1092
#65536 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1040
#131072 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1048
#262144 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1057
#524288 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1046
#1048576 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1044
#2097152 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1032
#4194304 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1024
#8388608 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1028
#16777216 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1032
#33554432 pulse cov: 87 bits: 97 indir: 7 units: 45 exec/s: 1033
#34193474 NEW cov: 87 bits: 98 indir: 7 units: 46 exec/s: 1033 L: 157
MS: 5 ShuffleBytes-ChangeByte-CrossOver-ChangeBit-AddFromTempAutoDict- DE: "hop
count"-
#34875071 NEW cov: 87 bits: 99 indir: 7 units: 47 exec/s: 1034 L: 167
MS: 2 InsertByte-AddFromPersAutoDict- DE: "hop count"-
#52917112 NEW cov: 87 bits: 100 indir: 7 units: 48 exec/s: 1043 L: 143
MS: 3 CrossOver-ChangeASCIIInt-AddFromTempAutoDict- DE: "sample size"-
#53180549 NEW cov: 87 bits: 101 indir: 7 units: 49 exec/s: 1043 L: 163
MS: 5 ChangeASCIIInt-AddFromPersAutoDict-ChangeASCIIInt-InsertByte-CrossOver-
DE: "sample size"-
#61760491 NEW cov: 87 bits: 102 indir: 7 units: 50 exec/s: 1045 L: 147
MS: 2 InsertByte-AddFromTempAutoDict- DE: "hop count"-
#67108864 pulse cov: 87 bits: 102 indir: 7 units: 50 exec/s: 1047
#102707549 NEW cov: 87 bits: 103 indir: 7 units: 51 exec/s: 1056 L: 171
MS: 5 ChangeASCIIInt-ChangeByte-ChangeASCIIInt-ShuffleBytes-CrossOver-
#134217728 pulse cov: 87 bits: 103 indir: 7 units: 51 exec/s: 1064
#172110166 NEW cov: 87 bits: 104 indir: 7 units: 52 exec/s: 1070 L: 153
MS: 2 CrossOver-AddFromTempAutoDict- DE: "hop count"-
#268435456 pulse cov: 87 bits: 104 indir: 7 units: 52 exec/s: 1076
#536870912 pulse cov: 87 bits: 104 indir: 7 units: 52 exec/s: 1082
#1073741824 pulse cov: 87 bits: 104 indir: 7 units: 52 exec/s: 1084
#-2147483648 pulse cov: 87 bits: 104 indir: 7 units: 52 exec/s: 1083
The last counter prints negative.</pre>
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