uring: fix uninitialized io_uring get#5
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zhxie wants to merge 1 commit intosoulxu:new_iouring_version_2from
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uring: fix uninitialized io_uring get#5zhxie wants to merge 1 commit intosoulxu:new_iouring_version_2from
zhxie wants to merge 1 commit intosoulxu:new_iouring_version_2from
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Signed-off-by: Xie Zhihao <zhihao.xie@intel.com>
soulxu
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Sep 27, 2022
This test sends a large number of metadata frames in order to trigger a disconnect. However, it was possible for the disconnect to happen and the connection to be torn down before all the metadata frames had been sent. If that happened, ASAN detected a UAF:
```
==95==ERROR: AddressSanitizer: heap-use-after-free on address 0x60700037e5a0 at pc 0x000004811f9e bp 0x7ffc903af990 sp 0x7ffc903af988
READ of size 8 at 0x60700037e5a0 thread T0
#0 0x4811f9d in Envoy::IntegrationCodecClient::sendMetadata(Envoy::Http::RequestEncoder&, Envoy::Http::MetadataMap) /proc/self/cwd/test/integration/http_integration.cc:168:3
#1 0x46ed711 in Envoy::Http2FloodMitigationTest_RequestMetadata_Test::TestBody() /proc/self/cwd/test/integration/http2_flood_integration_test.cc:1486:20
#2 0xd380e64 in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2580:10
#3 0xd348dc2 in testing::Test::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2655:5
#4 0xd34a927 in testing::TestInfo::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2832:11
#5 0xd34ccc4 in testing::TestSuite::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2986:28
#6 0xd36f07a in testing::internal::UnitTestImpl::RunAllTests() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5697:44
#7 0xd384e63 in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/
gtest.cc:2580:10
#8 0xd36dd86 in testing::UnitTest::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5280:10
#9 0xa0e53a4 in Envoy::TestRunner::RunTests(int, char**) /proc/self/cwd/external/com_google_googletest/googletest/include/gtest/gtest.h:2485:46
#10 0xa0e0af7 in main /proc/self/cwd/test/main.cc:34:10
#11 0x7f442ef69082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082) (BuildId: 1878e6b475720c7c51969e69ab2d276fae6d1dee)
#12 0x45ed36d in _start (/mnt/ssd/cas/work/1/exec/bazel-out/k8-dbg/bin/test/integration/http2_flood_integration_test.runfiles/envoy/test/integration/http2_flood_integration_test+0x45ed36d)
0x60700037e5a0 is located 48 bytes inside of 80-byte region [0x60700037e570,0x60700037e5c0)
freed by thread T0 here:
#0 0x466f7d2 in free /local/mnt/workspace/bcain_clang_hu-bcain-lv_22036/final/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:52:3
#1 0x831dde8 in Envoy::Http::CodecClient::ActiveRequest::~ActiveRequest() /proc/self/cwd/./source/common/http/codec_client.h:220:10
#2 0x5aa33f9 in std::__1::unique_ptr<Envoy::Event::DeferredDeletable, std::__1::default_delete<Envoy::Event::DeferredDeletable> >::reset(Envoy::Event::DeferredDeletable*) /opt/llvm/bin/../include/c++/v1/__memory/unique_ptr.h:54:5
#3 0xa3218e8 in Envoy::Event::DispatcherImpl::clearDeferredDeleteList() /proc/self/cwd/source/common/event/dispatcher_impl.cc:142:21
#4 0xa3348df in void std::__1::__invoke_void_return_wrapper<void, true>::__call<Envoy::Event::DispatcherImpl::DispatcherImpl(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, Envoy::Thread::ThreadFactory&, Envoy::TimeSource&
, Envoy::Random::RandomGenerator&, Envoy::Filesystem::Instance&, Envoy::Event::TimeSystem&, std::__1::function<std::__1::unique_ptr<Envoy::Event::ScaledRangeTimerManager, std::__1::default_delete<Envoy::Event::ScaledRangeTimerManager> > (Envoy::Event::Dispatcher&)> const&
, std::__1::shared_ptr<Envoy::Buffer::WatermarkFactory> const&)::$_2&>(Envoy::Event::DispatcherImpl::DispatcherImpl(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, Envoy::Thread::ThreadFactory&, Envoy::TimeSource&, Envoy::Rand
om::RandomGenerator&, Envoy::Filesystem::Instance&, Envoy::Event::TimeSystem&, std::__1::function<std::__1::unique_ptr<Envoy::Event::ScaledRangeTimerManager, std::__1::default_delete<Envoy::Event::ScaledRangeTimerManager> > (Envoy::Event::Dispatcher&)> const&, std::__1::s
hared_ptr<Envoy::Buffer::WatermarkFactory> const&)::$_2&) /proc/self/cwd/source/common/event/dispatcher_impl.cc:79:30
#5 0xa334603 in std::__1::__function::__func<Envoy::Event::DispatcherImpl::DispatcherImpl(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, Envoy::Thread::ThreadFactory&, Envoy::TimeSource&, Envoy::Random::RandomGenerator&,
Envoy::Filesystem::Instance&, Envoy::Event::TimeSystem&, std::__1::function<std::__1::unique_ptr<Envoy::Event::ScaledRangeTimerManager, std::__1::default_delete<Envoy::Event::ScaledRangeTimerManager> > (Envoy::Event::Dispatcher&)> const&, std::__1::shared_ptr<Envoy::Buffe
r::WatermarkFactory> const&)::$_2, std::__1::allocator<Envoy::Event::DispatcherImpl::DispatcherImpl(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, Envoy::Thread::ThreadFactory&, Envoy::TimeSource&, Envoy::Random::RandomGenera
tor&, Envoy::Filesystem::Instance&, Envoy::Event::TimeSystem&, std::__1::function<std::__1::unique_ptr<Envoy::Event::ScaledRangeTimerManager, std::__1::default_delete<Envoy::Event::ScaledRangeTimerManager> > (Envoy::Event::Dispatcher&)> const&, std::__1::shared_ptr<Envoy:
:Buffer::WatermarkFactory> const&)::$_2>, void ()>::operator()() /opt/llvm/bin/../include/c++/v1/__functional/function.h:180:16
#6 0x4897039 in std::__1::__function::__value_func<void ()>::operator()() const /opt/llvm/bin/../include/c++/v1/__functional/function.h:507:16
#7 0xa8e6aa4 in Envoy::Event::SchedulableCallbackImpl::SchedulableCallbackImpl(Envoy::CSmartPtr<event_base, &(event_base_free)>&, std::__1::function<void ()>)::$_0::__invoke(int, short, void*) /opt/llvm/bin/../include/c++/v1/__functional/function.h:1184:12
#8 0xb557c5e in event_process_active_single_queue /mnt/ssd/cas/work/2/exec/external/com_github_libevent_libevent/event.c:1713:4
#9 0xb539252 in event_process_active /mnt/ssd/cas/work/2/exec/external/com_github_libevent_libevent/event.c
#10 0xb539252 in event_base_loop /mnt/ssd/cas/work/2/exec/external/com_github_libevent_libevent/event.c:2047:12
#11 0xa8e1e3c in Envoy::Event::LibeventScheduler::run(Envoy::Event::Dispatcher::RunType) /proc/self/cwd/source/common/event/libevent_scheduler.cc:60:3
#12 0xa32bd94 in Envoy::Event::DispatcherImpl::run(Envoy::Event::Dispatcher::RunType) /proc/self/cwd/source/common/event/dispatcher_impl.cc:299:19
#13 0x480faad in Envoy::IntegrationCodecClient::flushWrite() /proc/self/cwd/test/integration/http_integration.cc:100:29
#14 0x4811e94 in Envoy::IntegrationCodecClient::sendMetadata(Envoy::Http::RequestEncoder&, Envoy::Http::MetadataMap) /proc/self/cwd/test/integration/http_integration.cc:169:3
#15 0x46ed711 in Envoy::Http2FloodMitigationTest_RequestMetadata_Test::TestBody() /proc/self/cwd/test/integration/http2_flood_integration_test.cc:1486:20
#16 0xd380e64 in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2580:10
#17 0xd348dc2 in testing::Test::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2655:5
#18 0xd34a927 in testing::TestInfo::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2832:11
#19 0xd34ccc4 in testing::TestSuite::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2986:28
#20 0xd36f07a in testing::internal::UnitTestImpl::RunAllTests() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5697:44
#21 0xd384e63 in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2580:10
#22 0xd36dd86 in testing::UnitTest::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5280:10
#23 0xa0e53a4 in Envoy::TestRunner::RunTests(int, char**) /proc/self/cwd/external/com_google_googletest/googletest/include/gtest/gtest.h:2485:46
#24 0xa0e0af7 in main /proc/self/cwd/test/main.cc:34:10
#25 0x7f442ef69082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082) (BuildId: 1878e6b475720c7c51969e69ab2d276fae6d1dee)
```
To fix that, write all metadata frames at once.
Signed-off-by: Benjamin Peterson <benjamin@engflow.com>
soulxu
pushed a commit
that referenced
this pull request
Feb 25, 2024
Commit Message: the probing socket is released when port migration fails. If this happens in response to an incoming packet during an I/O event, the follow socket read could cause use-after-free. [2024-01-08 16:30:53.386][12][critical][backtrace] [./source/server/backtrace.h:104] Caught Segmentation fault, suspect faulting address 0x0 [2024-01-08 16:30:53.387][12][critical][backtrace] [./source/server/backtrace.h:91] Backtrace (use tools/stack_decode.py to get line numbers): [2024-01-08 16:30:53.387][12][critical][backtrace] [./source/server/backtrace.h:92] Envoy version: 0/1.29.0-dev/test/DEBUG/BoringSSL [2024-01-08 16:30:53.413][12][critical][backtrace] [./source/server/backtrace.h:96] #0: Envoy::SignalAction::sigHandler() [0x55bb876d499e] [2024-01-08 16:30:53.413][12][critical][backtrace] [./source/server/backtrace.h:98] #1: [0x7f55fbf92510] [2024-01-08 16:30:53.440][12][critical][backtrace] [./source/server/backtrace.h:96] #2: Envoy::Network::Utility::readPacketsFromSocket() [0x55bb875de0ef] [2024-01-08 16:30:53.466][12][critical][backtrace] [./source/server/backtrace.h:96] #3: Envoy::Quic::EnvoyQuicClientConnection::onFileEvent() [0x55bb8663e1eb] [2024-01-08 16:30:53.492][12][critical][backtrace] [./source/server/backtrace.h:96] #4: Envoy::Quic::EnvoyQuicClientConnection::setUpConnectionSocket()::$_0::operator()() [0x55bb8663f192] [2024-01-08 16:30:53.518][12][critical][backtrace] [./source/server/backtrace.h:96] #5: std::__invoke_impl<>() [0x55bb8663f151] [2024-01-08 16:30:53.544][12][critical][backtrace] [./source/server/backtrace.h:96] #6: std::__invoke_r<>() [0x55bb8663f0e2] [2024-01-08 16:30:53.569][12][critical][backtrace] [./source/server/backtrace.h:96] #7: std::_Function_handler<>::_M_invoke() [0x55bb8663efc2] [2024-01-08 16:30:53.595][12][critical][backtrace] [./source/server/backtrace.h:96] #8: std::function<>::operator()() [0x55bb85cb8f44] [2024-01-08 16:30:53.621][12][critical][backtrace] [./source/server/backtrace.h:96] #9: Envoy::Event::DispatcherImpl::createFileEvent()::$_5::operator()() [0x55bb8722560f] [2024-01-08 16:30:53.648][12][critical][backtrace] [./source/server/backtrace.h:96] #10: std::__invoke_impl<>() [0x55bb872255c1] [2024-01-08 16:30:53.674][12][critical][backtrace] [./source/server/backtrace.h:96] #11: std::__invoke_r<>() [0x55bb87225562] [2024-01-08 16:30:53.700][12][critical][backtrace] [./source/server/backtrace.h:96] #12: std::_Function_handler<>::_M_invoke() [0x55bb872253e2] [2024-01-08 16:30:53.700][12][critical][backtrace] [./source/server/backtrace.h:96] #13: std::function<>::operator()() [0x55bb85cb8f44] [2024-01-08 16:30:53.726][12][critical][backtrace] [./source/server/backtrace.h:96] #14: Envoy::Event::FileEventImpl::mergeInjectedEventsAndRunCb() [0x55bb872358ec] [2024-01-08 16:30:53.752][12][critical][backtrace] [./source/server/backtrace.h:96] #15: Envoy::Event::FileEventImpl::assignEvents()::$_1::operator()() [0x55bb87235ed1] [2024-01-08 16:30:53.778][12][critical][backtrace] [./source/server/backtrace.h:96] #16: Envoy::Event::FileEventImpl::assignEvents()::$_1::__invoke() [0x55bb87235949] [2024-01-08 16:30:53.804][12][critical][backtrace] [./source/server/backtrace.h:96] #17: event_persist_closure [0x55bb87fab72b] [2024-01-08 16:30:53.830][12][critical][backtrace] [./source/server/backtrace.h:96] #18: event_process_active_single_queue [0x55bb87faada2] [2024-01-08 16:30:53.856][12][critical][backtrace] [./source/server/backtrace.h:96] #19: event_process_active [0x55bb87fa56c8] [2024-01-08 16:30:53.882][12][critical][backtrace] [./source/server/backtrace.h:96] #20: event_base_loop [0x55bb87fa45cc] [2024-01-08 16:30:53.908][12][critical][backtrace] [./source/server/backtrace.h:96] #21: Envoy::Event::LibeventScheduler::run() [0x55bb8760a59f] Risk Level: low Testing: new unit test Docs Changes: N/A Release Notes: Yes Platform Specific Features: N/A Signed-off-by: Dan Zhang <danzh@google.com> Co-authored-by: Dan Zhang <danzh@google.com>
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Signed-off-by: Xie Zhihao zhihao.xie@intel.com