Read after free in TypeSpec::struct_list()
rasmusbonnedal opened this issue · comments
Problem
I compile a shader with a struct using OSLCompiler
. When OSLCompiler
is destructed it performs SymbolTable::delete_syms()
which clears TypeSpec::struct_list()
.
Some operations, like ShadingSystem::oslquery()
and Symbol::print()
access entries in TypeSpec::struct_list()
which was deleted when OSLCompiler
went out of scope.
Related to #1427
Steps to Reproduce
The problem can be triggered with testshade, Visual Studio 2019, debug configuration.
- Run testshade
>bin\debug\testshade --inbuffer ..\osl-v1.12.6.0-beta\testsuite\struct\test.osl
- Result
0# boost::stacktrace::basic_stacktrace<std::allocator<boost::stacktrace::frame> >::init at C:\WORK\GIT\strala\winbuild\install\deps-debug\include\boost-1_78\boost\stacktrace\stacktrace.hpp:76
1# boost::stacktrace::basic_stacktrace<std::allocator<boost::stacktrace::frame> >::basic_stacktrace<std::allocator<boost::stacktrace::frame> > at C:\WORK\GIT\strala\winbuild\install\deps-debug\include\boost-1_78\boost\stacktrace\stacktrace.hpp:129
2# OpenImageIO_v2_3::Sysutil::stacktrace at C:\WORK\GIT\strala\winbuild\src\oiio-v2.3.12.0\src\libutil\sysutil.cpp:660
3# OpenImageIO_v2_3::stacktrace_signal_handler at C:\WORK\GIT\strala\winbuild\src\oiio-v2.3.12.0\src\libutil\sysutil.cpp:680
4# raise in ucrtbased
5# setmbcp in ucrtbased
6# CrtSetReportHookW2 in ucrtbased
7# VCrtDbgReportA in ucrtbased
8# CrtDbgReport in ucrtbased
9# std::vector<std::shared_ptr<OSL_v1_12::pvt::StructSpec>,std::allocator<std::shared_ptr<OSL_v1_12::pvt::StructSpec> > >::operator[] at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30133\include\vector:1552
10# OSL_v1_12::pvt::TypeSpec::structspec at C:\WORK\GIT\osl-v1.12.6.0-beta\src\include\osl_pvt.h:175
11# OSL_v1_12::pvt::TypeSpec::structspec at C:\WORK\GIT\osl-v1.12.6.0-beta\src\include\osl_pvt.h:169
12# OSL_v1_12::ShadingSystem::oslquery at C:\WORK\GIT\osl-v1.12.6.0-beta\src\liboslexec\shadingsys.cpp:4216
13# setup_output_images at C:\WORK\GIT\osl-v1.12.6.0-beta\src\testshade\testshade.cpp:1030
14# test_shade at C:\WORK\GIT\osl-v1.12.6.0-beta\src\testshade\testshade.cpp:2043
15# main at C:\WORK\GIT\osl-v1.12.6.0-beta\src\testshade\testshademain.cpp:29
16# invoke_main at D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:79
17# __scrt_common_main_seh at D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288
18# __scrt_common_main at D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:331
19# mainCRTStartup at D:\a\_work\1\s\src\vctools\crt\vcstartup\src\startup\exe_main.cpp:17
20# BaseThreadInitThunk in KERNEL32
21# RtlUserThreadStart in ntdll
Versions
- OSL branch/version: v1.12.6.0-beta
- OS: Windows 11
- C++ compiler: Visual Studio 2019 16.11.18
- LLVM version: 13.0.1
- OIIO version: v1.11.17.0