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From: "hodges.r at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/107288] New: Double-free of temporaries created in statement following co_await Date: Mon, 17 Oct 2022 08:31:00 +0000 [thread overview] Message-ID: <bug-107288-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107288 Bug ID: 107288 Summary: Double-free of temporaries created in statement following co_await Product: gcc Version: 12.2.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: hodges.r at gmail dot com Target Milestone: --- Compiling the attached program results in a call to abort() due to a double free of the temporary `foo`. The problem is in this statement: ``` co_await chan.async_send({}, foo { .s = "hello world", .i = 1 }, asio::redirect_error(asio::use_awaitable, ec)); ``` Modifying the code to remove the temporary works around the issue: ``` auto f = foo { .s = "hello world", .i = 1 }; co_await chan.async_send({}, std::move(f), asio::redirect_error(asio::use_awaitable, ec)); ``` Compiler command line: ``` $ /usr/bin/c++ -DBOOST_SYSTEM_NO_LIB -DBOOST_THREAD_NO_LIB -DBOOST_URL_NO_LIB=1 -DBOOST_URL_STATIC_LINK=1 -DCPP_JWT_USE_VENDORED_NLOHMANN_JSON -I/home/rhodges/github/Power-Trade/riskmon/apps/scratch2 -I/home/rhodges/github/Power-Trade/riskmon/build/apps/scratch2 -I/home/rhodges/github/Power-Trade/riskmon/libs -I/home/rhodges/github/Power-Trade/riskmon/build/_deps/boost_url-src/include -isystem /home/rhodges/work/gcc/include -g -save-temps -std=gnu++20 scratch2 /home/rhodges/github/Power-Trade/riskmon/apps/scratch2/main.cpp ``` Result of running the program: ``` $ ./scratch2 munmap_chunk(): invalid pointer Aborted (core dumped) ```
next reply other threads:[~2022-10-17 8:31 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-10-17 8:31 hodges.r at gmail dot com [this message] 2022-10-17 8:36 ` [Bug c++/107288] " hodges.r at gmail dot com 2022-10-17 12:01 ` marxin at gcc dot gnu.org 2022-10-18 10:47 ` hodges.r at gmail dot com 2023-04-22 19:40 ` [Bug c++/107288] coroutines: " StevenSun2021 at hotmail dot com 2024-05-06 6:25 ` accelerator0099 at gmail dot com
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