<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/88339>88339</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            lldb 18.1.3 crashing on watchpoints when UBSan enabled.
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          hoyhoy
      </td>
    </tr>
</table>

<pre>
    ```
#0 0x0000000105657228 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/llvm18/bin/lldb+0x100022228)
 #1 0x000000010565540a llvm::sys::RunSignalHandlers() (/opt/llvm18/bin/lldb+0x10002040a)
 #2 0x0000000105657bc7 SignalHandler(int) (/opt/llvm18/bin/lldb+0x100022bc7)
 #3 0x00007ff801664fdd (/usr/lib/system/libsystem_platform.dylib+0x7ff80046afdd)
 #4 0x000000010c3ffc51 lldb_private::Value::GetValueAsData(lldb_private::ExecutionContext*, lldb_private::DataExtractor&, lldb_private::Module*) (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x2efc51)
 #5 0x000000010c5be795 lldb_private::StopInfoWatchpoint::PerformAction(lldb_private::Event*) (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x4ae795)
 #6 0x000000010c58315a lldb_private::Process::ProcessEventData::ShouldStop(lldb_private::Event*, bool&) (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x47315a)
 #7 0x000000010c58349b lldb_private::Process::ProcessEventData::DoOnRemoval(lldb_private::Event*) (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x47349b)
 #8 0x000000010c636662 lldb_private::Event::DoOnRemoval() (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x526662)
 #9 0x000000010c63d068 lldb_private::Listener::FindNextEventInternal(std::__1::unique_lock<std::__1::mutex>&, lldb_private::Broadcaster*, unsigned int, std::__1::shared_ptr<lldb_private::Event>&, bool) (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x52d068)
#10 0x000000010c63d4d8 lldb_private::Listener::GetEventInternal(lldb_private::Timeout<std::__1::ratio<1l, 1000000l>> const&, lldb_private::Broadcaster*, unsigned int, std::__1::shared_ptr<lldb_private::Event>&) (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x52d4d8)
#11 0x000000010c38de49 lldb_private::Debugger::DefaultEventHandler() (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x27de49)
#12 0x000000010c390fdd std::__1::__function::__func<lldb_private::Debugger::StartEventHandlerThread()::$_4, std::__1::allocator<lldb_private::Debugger::StartEventHandlerThread()::$_4>, void* ()>::operator()() (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x280fdd)
#13 0x000000010c47ac5a lldb_private::HostNativeThreadBase::ThreadCreateTrampoline(void*) (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x36ac5a)
#14 0x000000010d42bd3a lldb_private::HostThreadMacOSX::ThreadCreateTrampoline(void*) (/opt/llvm18/lib/liblldb.18.1.3.dylib+0x131bd3a)
#15 0x00007ff80163618b (/usr/lib/system/libsystem_pthread.dylib+0x7ff80043c18b)
#16 0x00007ff801631ae3 (/usr/lib/system/libsystem_pthread.dylib+0x7ff800437ae3)
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzEl9tu2zgXhZ-GvhFq8KDjhS8cJ24L_D2gyT8zdwYlbtmc0qSHpBLn7QcUnSa0HXTqTjFBgIjxFte31qZFijsn1xpghoorVFxP-OA3xs425nFjHietEY8zVOLDL75GeI4owxne4_hDcFEWFaV1ptT9FrE5YnP36OLFZyu1v_W8-3pneQeI1s9Flj-sjPMW-BbREtFFJrVHtMkQrRFdmp1HdBnKSRi2Uo9D0SJ6hfcEY0wpDZVNpMoQZeQIq8gxP4f1ZdC3cq25ese1UGDdKPkDyjjHPFGmx4G0XZUlGojWP-yv7apEhR1Uqr6vMSnLvBfiMN3gbLhftogu3aPzsI3DeL3aKe57Y7dT8TjWXOH9OAnOS94LkajkL710rO-7gmSBbLWz8p57iCH-xtVwuHwLfhzN3TX3fOzycfXNHrrBS6MXRnvYe0TnoeWnhWGGm723vPPGHhbGadUHIwYF4ySvBBqjULINN09JPSVT9sI9hWAr8V0kvosWqqY4I33rze697s3v3HebnQlNjWsdbEh43gWX5zO4B-1_gjnnASlhLlPmmpGCn2H-bE0HziWDkWbsV7S1MYMSwdx32BdZa4waO3OhjSpQJjaqYxt5015m49p80l9ga-65-jU9qAJbAl8n8CUry5KegY_KZyAvRSloUEpQmiMUgcv6DMr_pPOgwcbRUmrxEfZ-BHyvPVg9cjkvYsFqReLFoOVfA6yU6b4itjj9fDt42CN28-rX9soaLjrufHgejmtp0OP2I-LDf5GdTuo23IJY7bxFbPFqrE-acW1eGmjI61ugYUPBx4Hm4vuBvoWTLE9vuZNbMIM_m6PlXhrEFkQFSyTqq2CS3WSd0c7_ZwlfnGwu0mRJusvUAvLm3HYA7bBePyV7DT0fVEz3eV-9eA-ogmhCRVOqBocd9jSx1aofdHzQvxifTS81cOu5TfDvNha4iCZiCaL5Kj_fKK6U6XjYF_9FpdDYRXZvpEB0nj19fhNLzA7sKBj__RNZ1_jlOSNkzZKs84p3Z_eud8b5j9zLe4gOrrh7-gqN44UF7uHO8u3OKKnDIfNg5lJWVgaUhDU5E4mctoK9xhqpPvDu0-0fv5aTMBI4EtAiPSKyktTtPzwi-hHz9ITIOlK3iUh5JEI4sJ8VqTiwZ5GnN46JmDHRsIZPYEYqQmuMy7yYbGa0aEG0vBB92TW5EA0pBRR13jEuBO6LiZxRTHOcE4JJUdFi2laEsJp2mDe04FWPcgxbLtU0xD01dj2Rzg0wq2vGmoniLSg3vhRRquEhGz9ElIZ3JDsL97xph7VDOVbSefc8i5dewSx0LIsdyzrL3UbqdWZ09vDt1Oiyhw3o7P9Xt1xnoHmrQEwng1Wzjfe78ZBDl4gu19Jvhnbame1haRz-vNlZ8yd0YcGMbA7R5cj-dwAAAP__efoYOg">