Merge pull request #23664 from azat/msan-dtor

Enable use-after-destruction detection in MSan
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alexey-milovidov 2021-04-30 21:51:28 +03:00 committed by GitHub
commit 7fa24d7b26
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5 changed files with 17 additions and 5 deletions

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@ -40,7 +40,7 @@ if (SANITIZE)
# RelWithDebInfo, and downgrade optimizations to -O1 but not to -Og, to
# keep the binary size down.
# TODO: try compiling with -Og and with ld.gold.
set (MSAN_FLAGS "-fsanitize=memory -fsanitize-memory-track-origins -fno-optimize-sibling-calls -fsanitize-blacklist=${CMAKE_SOURCE_DIR}/tests/msan_suppressions.txt")
set (MSAN_FLAGS "-fsanitize=memory -fsanitize-memory-use-after-dtor -fsanitize-memory-track-origins -fno-optimize-sibling-calls -fsanitize-blacklist=${CMAKE_SOURCE_DIR}/tests/msan_suppressions.txt")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${SAN_FLAGS} ${MSAN_FLAGS}")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${SAN_FLAGS} ${MSAN_FLAGS}")

2
contrib/boost vendored

@ -1 +1 @@
Subproject commit 9f0ff347e50429686604002d8ad1fd07515c4f31
Subproject commit 1ccbb5a522a571ce83b606dbc2e1011c42ecccfb

2
contrib/llvm vendored

@ -1 +1 @@
Subproject commit 8f24d507c1cfeec66d27f48fe74518fd278e2d25
Subproject commit cfaf365cf96918999d09d976ec736b4518cf5d02

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@ -51,13 +51,13 @@ RUN apt-get update \
# Sanitizer options for services (clickhouse-server)
RUN echo "TSAN_OPTIONS='verbosity=1000 halt_on_error=1 history_size=7'" >> /etc/environment; \
echo "UBSAN_OPTIONS='print_stacktrace=1'" >> /etc/environment; \
echo "MSAN_OPTIONS='abort_on_error=1'" >> /etc/environment; \
echo "MSAN_OPTIONS='abort_on_error=1 poison_in_dtor=1'" >> /etc/environment; \
echo "LSAN_OPTIONS='suppressions=/usr/share/clickhouse-test/config/lsan_suppressions.txt'" >> /etc/environment; \
ln -s /usr/lib/llvm-${LLVM_VERSION}/bin/llvm-symbolizer /usr/bin/llvm-symbolizer;
# Sanitizer options for current shell (not current, but the one that will be spawned on "docker run")
# (but w/o verbosity for TSAN, otherwise test.reference will not match)
ENV TSAN_OPTIONS='halt_on_error=1 history_size=7'
ENV UBSAN_OPTIONS='print_stacktrace=1'
ENV MSAN_OPTIONS='abort_on_error=1'
ENV MSAN_OPTIONS='abort_on_error=1 poison_in_dtor=1'
CMD sleep 1

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@ -12,6 +12,7 @@
#include <Core/Defines.h>
#include <common/types.h>
#include <Common/Exception.h>
#include <Common/MemorySanitizer.h>
#include <IO/WriteBuffer.h>
#include <IO/WriteHelpers.h>
@ -584,8 +585,19 @@ protected:
void destroyElements()
{
if (!std::is_trivially_destructible_v<Cell>)
{
for (iterator it = begin(), it_end = end(); it != it_end; ++it)
{
it.ptr->~Cell();
/// In case of poison_in_dtor=1 it will be poisoned,
/// but it maybe used later, during iteration.
///
/// NOTE, that technically this is UB [1], but OK for now.
///
/// [1]: https://github.com/google/sanitizers/issues/854#issuecomment-329661378
__msan_unpoison(it.ptr, sizeof(*it.ptr));
}
}
}