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pauldreik opened this issue
Aug 26, 2023
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confirmedVerified by a second partyformatC++20 std::format or std::print, and anything related to themlibc++libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.
causes an out of bounds read on the format buffer "fmt". When compiled with libc++ on the current clang trunk (as of what is compiler explorer on the 2023-08-26) and address sanitizer, the message below appears.
confirmedVerified by a second partyformatC++20 std::format or std::print, and anything related to themlibc++libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi.
The following program:
causes an out of bounds read on the format buffer "fmt". When compiled with libc++ on the current clang trunk (as of what is compiler explorer on the 2023-08-26) and address sanitizer, the message below appears.
Compile flags: -std=c++23 -fsanitize=address,undefined -stdlib=libc++
Link to reproducer: https://godbolt.org/z/bEvYT4b1j
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