Skip to content

<regex>: Handle overflow and allocation failure when parsing repetitions #5716

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
StephanTLavavej merged 2 commits into from
Sep 22, 2025
Merged

<regex>: Handle overflow and allocation failure when parsing repetitions #5716

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
11d1daa
`<regex>`: Handle overflow and allocation failure when parsing repeti…
muellerj2 Sep 12, 2025
c7d2ef7
Merge branch 'main' into regex-overflow-alloc-failure-when-parsing-re…
muellerj2 Sep 15, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 6 additions & 2 deletions stl/inc/regex
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3328,10 +3328,14 @@ void _Builder2<_FwdIt, _Elem, _RxTraits>::_Add_rep(int _Min, int _Max, bool _Gre
return;
}

if (_Root->_Loops == static_cast<unsigned int>(-1)) {
_Xregex_error(regex_constants::error_space);
}

_Node_end_rep* _Node0 = new _Node_end_rep();
_Node_rep* _Nx = new _Node_rep(_Greedy, _Min, _Max, _Node0, _Root->_Loops++);
_Node0->_Begin_rep = _Nx;
_Link_node(_Node0);
_Node_rep* _Nx = new _Node_rep(_Greedy, _Min, _Max, _Node0, _Root->_Loops++);
_Node0->_Begin_rep = _Nx;
_Insert_node(_Pos, _Nx);
}

Expand Down