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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - ASan should relocate its shadow region if the default location is claimed by something else"
href="https://llvm.org/bugs/show_bug.cgi?id=25466">25466</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>ASan should relocate its shadow region if the default location is claimed by something else
</td>
</tr>
<tr>
<th>Product</th>
<td>compiler-rt
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>compiler-rt
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jeremyhu@apple.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>As initially reported to me at
<a href="https://bugs.freedesktop.org/show_bug.cgi?id=92876">https://bugs.freedesktop.org/show_bug.cgi?id=92876</a>
"""
$ /opt/wine/bin/wine /opt/wine/lib/wine/fakedlls/winemine.exe
==16321==Shadow memory range interleaves with an existing memory mapping. ASan
cannot proceed correctly. ABORTING.
==16321==ASan shadow was supposed to be located in the [0x1ffff000-0x3fffffff]
range.
==16321==Process memory map follows:
0x43c0d000-0x43c9f000
/opt/X11/lib/asan/libclang_rt.asan_osx_dynamic.dylib
0x43c9f000-0x44139000
/opt/X11/lib/asan/libclang_rt.asan_osx_dynamic.dylib
0x44139000-0x4417e000
/opt/X11/lib/asan/libclang_rt.asan_osx_dynamic.dylib
0x4384d000-0x43bb4000 /opt/X11/lib/libfreetype.6.dylib
0x43bb4000-0x43bc3000 /opt/X11/lib/libfreetype.6.dylib
0x43bc3000-0x43c0d000 /opt/X11/lib/libfreetype.6.dylib
0x43720000-0x437dd000 /opt/wine-1.3.16/lib/wine/comctl32.dll.so
0x437dd000-0x43808000 /opt/wine-1.3.16/lib/wine/comctl32.dll.so
0x43808000-0x4384d000 /opt/wine-1.3.16/lib/wine/comctl32.dll.so
0x434f7000-0x4359d000 /opt/wine-1.3.16/lib/wine/shell32.dll.so
0x4359d000-0x436b6000 /opt/wine-1.3.16/lib/wine/shell32.dll.so
0x436b6000-0x43720000 /opt/wine-1.3.16/lib/wine/shell32.dll.so
0x43169000-0x431ba000 /opt/wine-1.3.16/lib/wine/shlwapi.dll.so
0x431ba000-0x431c3000 /opt/wine-1.3.16/lib/wine/shlwapi.dll.so
0x431c3000-0x431fe000 /opt/wine-1.3.16/lib/wine/shlwapi.dll.so
0x433a5000-0x4347b000 /opt/wine-1.3.16/lib/wine/oleaut32.dll.so
0x4347b000-0x43488000 /opt/wine-1.3.16/lib/wine/oleaut32.dll.so
0x43488000-0x434f7000 /opt/wine-1.3.16/lib/wine/oleaut32.dll.so
0x43300000-0x43364000 /opt/wine-1.3.16/lib/wine/rpcrt4.dll.so
0x43364000-0x4336b000 /opt/wine-1.3.16/lib/wine/rpcrt4.dll.so
0x4336b000-0x433a5000 /opt/wine-1.3.16/lib/wine/rpcrt4.dll.so
0x41aa9000-0x41ac0000 /opt/wine-1.3.16/lib/wine/version.dll.so
0x41ac0000-0x41ac1000 /opt/wine-1.3.16/lib/wine/version.dll.so
0x41ac1000-0x41ac4000 /opt/wine-1.3.16/lib/wine/version.dll.so
[... the process memory map is too long for bugzilla, so I cut it here ...]
==16320==End of process memory map.
fixme:ntdll:RtlNtStatusToDosErrorNoTeb no mapping for 80000101
The full error message (with full process map) can be found here:
<a href="https://www.dropbox.com/s/ynhmvn8qx03n73j/wine-xquartz.txt?dl=0">https://www.dropbox.com/s/ynhmvn8qx03n73j/wine-xquartz.txt?dl=0</a>
"""
The issue seems to be that wine's WINE_DOS segment conflicts with ASan's
shadow:
0x00000000-0x40000000 /opt/wine/bin/wine.bin
Load command 3
cmd LC_SEGMENT
cmdsize 124
segname WINE_DOS
vmaddr 0x00001000
vmsize 0x40000000
fileoff 0
filesize 0
maxprot 0x00000007
initprot 0x00000003
nsects 1
flags 0x0
Section
sectname WINE_DOS
segname WINE_DOS
addr 0x00001000
size 0x40000000
offset 0
align 2^0 (1)
reloff 0
nreloc 0
flags 0x00000001
reserved1 0
reserved2 0</pre>
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