<vector>: x86 ASAN failure with pmr::monotonic_buffer_resource

[Caball009]

Might be related to: #3164

Initializing std::vector + std::pmr::monotonic_buffer_resource causes ASAN to throw an exception in x86 mode under certain conditions.

The following code shows this, but unfortunately I was unable to add ASAN to MSVC in compiler explorer, so instead GCC x86 and x64 were added to show there's no problem there.
https://godbolt.org/z/sM931fbP3
https://godbolt.org/z/vbzEa4cba

The code from the first link for posterity's sake:

#include <array>
#include <iostream>
#include <memory_resource>
#include <vector>

int main()
{
    using T = std::pmr::vector<std::uint8_t>;

    std::array<std::uint8_t, 8192> buffer{};
    std::pmr::monotonic_buffer_resource mbr(buffer.data(), buffer.size(), 
        std::pmr::null_memory_resource());
    
    T vec1(128, &mbr);
    T vec2(128, &mbr);

    std::cout << "So far so good\n";

    T vec3(100, &mbr);
    T vec4(128, &mbr); // <-- asan throws exception here

    std::cout << "All good\n";
}

Visual Studio 2022 versions:

• v17.4.0, various preview versions (preview 2.1, preview 6)
• v17.5.0

Notable compiler settings / flags

• Debug mode
• x86 (NOT x64)
• C++17 / C++20
• Address sanitizer enabled (/fsanitize=address)

NB: ASAN would only thow an exception in x86 mode + Visual Studio 2022. I was unable to reproduce the issue with Visual Studio 2019, neither x86 nor x64 (I don't have a VS2019 version number at hand, but it was quite recent).

[strega-nil-ms]

Yep! As far as I can tell, this is fixed by #3164 :)