==3859==ERROR: AddressSanitizer: heap-use-after-free on address 0x61b0000053e0 at pc 0x000800697160 bp 0x7fffffffcfb0 sp 0x7fffffffcfa8
READ of size 8 at 0x61b0000053e0 thread T0
#0 0x80069715f in PT::MemBuffer<wchar_t, 256ul, 4096ul>::empty() const /usr/home/tomek/roboczy/prog/web.ttmath.org/../pikotools/membuffer/membuffer.h:675:9
#1 0x80069700d in PT::TextStreamBase<wchar_t, 256ul, 4096ul>::empty() const /usr/home/tomek/roboczy/prog/web.ttmath.org/../pikotools/textstream/textstream.h:161:16
#2 0x8009af0e3 in PT::FileLog::save_log(PT::TextStreamBase<wchar_t, 256ul, 4096ul>*) /usr/home/tomek/roboczy/prog/pikotools/log/filelog.cpp:105:14
#3 0x8009b3f8a in PT::Log::save_log() /usr/home/tomek/roboczy/prog/pikotools/log/log.cpp:461:13
#4 0x8009b3d72 in PT::Log::save_log_and_clear() /usr/home/tomek/roboczy/prog/pikotools/log/log.cpp:448:2
#5 0x8009b0627 in PT::Log::~Log() /usr/home/tomek/roboczy/prog/pikotools/log/log.cpp:62:2
#6 0x8007288e7 in Winix::Log::~Log() /usr/home/tomek/roboczy/prog/winix/winixd/core/log.cpp:56:1
#7 0x8007eac96 in Winix::WinixBase::~WinixBase() /usr/home/tomek/roboczy/prog/winix/winixd/core/winixbase.cpp:51:1
#8 0x8007eb097 in Winix::WinixModel::~WinixModel() /usr/home/tomek/roboczy/prog/winix/winixd/core/winixmodel.cpp:52:1
#9 0x80069e552 in Winix::BaseThread::~BaseThread() /usr/home/tomek/roboczy/prog/winix/winixd/core/basethread.cpp:54:1
#10 0x2f8132 in Winix::Job::~Job() /usr/home/tomek/roboczy/prog/web.ttmath.org/../winix/winixd/core/job.h:54:7
#11 0x2e0c8a in Winix::System::~System() /usr/home/tomek/roboczy/prog/web.ttmath.org/../winix/winixd/core/system.h:67:7
#12 0x2df017 in Winix::App::~App() /usr/home/tomek/roboczy/prog/web.ttmath.org/../winix/winixd/core/app.h:70:7
#13 0x800cc9f50 in __cxa_finalize /hddraidzfs/usr/src/lib/libc/stdlib/atexit.c:238:5
#14 0x800c5ef10 in exit /hddraidzfs/usr/src/lib/libc/stdlib/exit.c:74:2
#15 0x25c935 in _start /hddraidzfs/usr/src/lib/csu/amd64/crt1.c:76:2
0x61b0000053e0 is located 1632 bytes inside of 1656-byte region [0x61b000004d80,0x61b0000053f8)
freed by thread T0 here:
#0 0x2dc07d in operator delete(void*) /hddraidzfs/usr/src/contrib/llvm-project/compiler-rt/lib/asan/asan_new_delete.cpp:160:3
#1 0x8007c3b2c in Winix::ThreadManager::StopAll() /usr/home/tomek/roboczy/prog/winix/winixd/core/threadmanager.cpp:189:3
#2 0x800647474 in Winix::App::WaitForThreads() /usr/home/tomek/roboczy/prog/winix/winixd/core/app.cpp:2122:24
#3 0x800647311 in Winix::App::Close() /usr/home/tomek/roboczy/prog/winix/winixd/core/app.cpp:340:2
#4 0x2dec7c in main /usr/home/tomek/roboczy/prog/winix/winixd/main/main.cpp:224:6
#5 0x25c92e in _start /hddraidzfs/usr/src/lib/csu/amd64/crt1.c:76:7
#6 0x80033efff (<unknown module>)
previously allocated by thread T0 here:
#0 0x2db81d in operator new(unsigned long) /hddraidzfs/usr/src/contrib/llvm-project/compiler-rt/lib/asan/asan_new_delete.cpp:99:3
#1 0x8007c17c3 in Winix::ThreadManager::Add(Winix::BaseThread*, wchar_t const*) /usr/home/tomek/roboczy/prog/winix/winixd/core/threadmanager.cpp:77:26
#2 0x8007b0b81 in Winix::System::Init() /usr/home/tomek/roboczy/prog/winix/winixd/core/system.cpp:170:17
#3 0x8006468d4 in Winix::App::Init() /usr/home/tomek/roboczy/prog/winix/winixd/core/app.cpp:295:9
#4 0x2deb7e in main /usr/home/tomek/roboczy/prog/winix/winixd/main/main.cpp:206:11
#5 0x25c92e in _start /hddraidzfs/usr/src/lib/csu/amd64/crt1.c:76:7
#6 0x80033efff (<unknown module>)
in ThreadManager::StopAll() there is item.thread_item_data pointer which was freed (the pointer was pointing to an object with a log_buffer)
but internal Log buffer from item.object was pointing to that object and when thread_tab.clear() was called then the d-ctor was called
and then save_log_and_clear() method was called and tried to use the freed object.
(there was no session set and the request was treated the same as from a not logged user)
fixed: in BaseThread there was used 'log' in the main thread (this logger is only for the other thread)
added: in BaseThread we have a main_log now - logger which puts to the main log buffer from the main thread
git-svn-id: svn://ttmath.org/publicrep/winix/trunk@1182 e52654a7-88a9-db11-a3e9-0013d4bc506e
Tomasz Sowa