Major Description
From Leif running on docs.trafficserver.apache.org:
traffic_server: using root directory '/opt/ats' ================================================================= ==31101==ERROR: AddressSanitizer: heap-use-after-free on address 0x61800000c888 at pc 0x4f3558 bp 0x2aaf10c88930 sp 0x2aaf10c88928 READ of size 8 at 0x61800000c888 thread T2 ([ET_NET 1]) #0 0x4f3557 in Continuation::handleEvent(int, void*) ../iocore/eventsystem/I_Continuation.h:146 #1 0x4f3557 in FetchSM::InvokePluginExt(int) /usr/local/src/trafficserver/proxy/FetchSM.cc:301 #2 0x4f3a7a in FetchSM::process_fetch_read(int) /usr/local/src/trafficserver/proxy/FetchSM.cc:465 #3 0x4f5112 in FetchSM::fetch_handler(int, void*) /usr/local/src/trafficserver/proxy/FetchSM.cc:514 #4 0x59f1b7 in Continuation::handleEvent(int, void*) ../iocore/eventsystem/I_Continuation.h:146 #5 0x59f1b7 in PluginVC::process_read_side(bool) /usr/local/src/trafficserver/proxy/PluginVC.cc:640 #6 0x5abcb9 in PluginVC::main_handler(int, void*) /usr/local/src/trafficserver/proxy/PluginVC.cc:206 #7 0xc821fe in Continuation::handleEvent(int, void*) /usr/local/src/trafficserver/iocore/eventsystem/I_Continuation.h:146 #8 0xc821fe in EThread::process_event(Event*, int) /usr/local/src/trafficserver/iocore/eventsystem/UnixEThread.cc:144 #9 0xc84819 in EThread::execute() /usr/local/src/trafficserver/iocore/eventsystem/UnixEThread.cc:238 #10 0xc80e18 in spawn_thread_internal /usr/local/src/trafficserver/iocore/eventsystem/Thread.cc:88 #11 0x2aaf0b083df2 in start_thread (/lib64/libpthread.so.0+0x7df2) #12 0x2aaf0c8ec1ac in clone (/lib64/libc.so.6+0xf61ac) 0x61800000c888 is located 8 bytes inside of 816-byte region [0x61800000c880,0x61800000cbb0) freed by thread T0 ([ET_NET 0]) here: #0 0x2aaf08c131c7 in __interceptor_free ../../.././libsanitizer/asan/asan_malloc_linux.cc:62 #1 0x7b7d42 in Http2ClientSession::do_io_close(int) /usr/local/src/trafficserver/proxy/http2/Http2ClientSession.cc:194 #2 0x7b7d42 in Http2ClientSession::main_event_handler(int, void*) /usr/local/src/trafficserver/proxy/http2/Http2ClientSession.cc:237 #3 0xc1351f in Continuation::handleEvent(int, void*) ../../iocore/eventsystem/I_Continuation.h:146 #4 0xc1351f in read_signal_and_update /usr/local/src/trafficserver/iocore/net/UnixNetVConnection.cc:140 #5 0xc1351f in read_signal_done /usr/local/src/trafficserver/iocore/net/UnixNetVConnection.cc:185 #6 0xc1351f in UnixNetVConnection::readSignalDone(int, NetHandler*) /usr/local/src/trafficserver/iocore/net/UnixNetVConnection.cc:939 #7 0xbbabf8 in SSLNetVConnection::net_read_io(NetHandler*, EThread*) /usr/local/src/trafficserver/iocore/net/SSLNetVConnection.cc:596 #8 0xbda09c in NetHandler::mainNetEvent(int, Event*) /usr/local/src/trafficserver/iocore/net/UnixNet.cc:513 #9 0xc85089 in Continuation::handleEvent(int, void*) /usr/local/src/trafficserver/iocore/eventsystem/I_Continuation.h:146 #10 0xc85089 in EThread::process_event(Event*, int) /usr/local/src/trafficserver/iocore/eventsystem/UnixEThread.cc:144 #11 0xc85089 in EThread::execute() /usr/local/src/trafficserver/iocore/eventsystem/UnixEThread.cc:268 #12 0x498f96 in main /usr/local/src/trafficserver/proxy/Main.cc:1826 #13 0x2aaf0c817af4 in __libc_start_main (/lib64/libc.so.6+0x21af4) previously allocated by thread T0 ([ET_NET 0]) here: #0 0x2aaf08c1393b in __interceptor_posix_memalign ../../.././libsanitizer/asan/asan_malloc_linux.cc:130 #1 0x2aaf09afd2f9 in ats_memalign /usr/local/src/trafficserver/lib/ts/ink_memory.cc:96 #2 0x7cd804 in ClassAllocator<Http2ClientSession>::alloc() ../../lib/ts/Allocator.h:124 #3 0x7cd804 in Http2SessionAccept::accept(NetVConnection*, MIOBuffer*, IOBufferReader*) /usr/local/src/trafficserver/proxy/http2/Http2SessionAccept.cc:57 #4 0x7cd3c4 in Http2SessionAccept::mainEvent(int, void*) /usr/local/src/trafficserver/proxy/http2/Http2SessionAccept.cc:69 #5 0xbc2fae in SSLNextProtocolTrampoline::ioCompletionEvent(int, void*) /usr/local/src/trafficserver/iocore/net/SSLNextProtocolAccept.cc:101 #6 0xc1351f in Continuation::handleEvent(int, void*) ../../iocore/eventsystem/I_Continuation.h:146 #7 0xc1351f in read_signal_and_update /usr/local/src/trafficserver/iocore/net/UnixNetVConnection.cc:140 #8 0xc1351f in read_signal_done /usr/local/src/trafficserver/iocore/net/UnixNetVConnection.cc:185 #9 0xc1351f in UnixNetVConnection::readSignalDone(int, NetHandler*) /usr/local/src/trafficserver/iocore/net/UnixNetVConnection.cc:939 #10 0xbbba59 in SSLNetVConnection::net_read_io(NetHandler*, EThread*) /usr/local/src/trafficserver/iocore/net/SSLNetVConnection.cc:489 #11 0xbda09c in NetHandler::mainNetEvent(int, Event*) /usr/local/src/trafficserver/iocore/net/UnixNet.cc:513 #12 0xc85089 in Continuation::handleEvent(int, void*) /usr/local/src/trafficserver/iocore/eventsystem/I_Continuation.h:146 #13 0xc85089 in EThread::process_event(Event*, int) /usr/local/src/trafficserver/iocore/eventsystem/UnixEThread.cc:144 #14 0xc85089 in EThread::execute() /usr/local/src/trafficserver/iocore/eventsystem/UnixEThread.cc:268 #15 0x498f96 in main /usr/local/src/trafficserver/proxy/Main.cc:1826 #16 0x2aaf0c817af4 in __libc_start_main (/lib64/libc.so.6+0x21af4) Thread T2 ([ET_NET 1]) created by T0 ([ET_NET 0]) here: #0 0x2aaf08be286a in __interceptor_pthread_create ../../.././libsanitizer/asan/asan_interceptors.cc:183 #1 0xc81aa5 in ink_thread_create ../../lib/ts/ink_thread.h:148 #2 0xc81aa5 in Thread::start(char const*, unsigned long, void* (*)(void*), void*) /usr/local/src/trafficserver/iocore/eventsystem/Thread.cc:103 #3 0xc8a026 in EventProcessor::start(int, unsigned long) /usr/local/src/trafficserver/iocore/eventsystem/UnixEventProcessor.cc:140 #4 0x498d0b in main /usr/local/src/trafficserver/proxy/Main.cc:1636 #5 0x2aaf0c817af4 in __libc_start_main (/lib64/libc.so.6+0x21af4) SUMMARY: AddressSanitizer: heap-use-after-free ../iocore/eventsystem/I_Continuation.h:146 Continuation::handleEvent(int, void*) Shadow bytes around the buggy address: 0x0c307fff98c0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c307fff98d0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c307fff98e0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c307fff98f0: fd fd fd fd fd fd fa fa fa fa fa fa fa fa fa fa 0x0c307fff9900: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa =>0x0c307fff9910: fd[fd]fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c307fff9920: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c307fff9930: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c307fff9940: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c307fff9950: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c307fff9960: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Heap right redzone: fb Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack partial redzone: f4 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Contiguous container OOB:fc ASan internal: fe ==31101==ABORTING traffic_server: using root directory '/opt/ats'