[Bug libstdc++/86164] std::regex crashes when matching long lines

[nilsgladitz at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86164

Nils Gladitz <nilsgladitz at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |nilsgladitz at gmail dot com

--- Comment #6 from Nils Gladitz <nilsgladitz at gmail dot com> ---
I think I am hitting this issue somewhat earlier on an ARM system with a more
limited stack size.

Was able to reproduce it on Desktop x86_64 Linux with e.g.:

#include <regex>

int main()
{
    std::regex_match(
        std::string(2000, 'a'),
        std::regex(".*")
    );
}

$ ulimit -s 256 # 256kb stack; which is what have by default on the ARM system
$ g++ test.cpp -o regex_test
$ ./regex_test
Segmentation fault (core dumped)