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| author | Michael Forney <mforney@mforney.org> | 2025-05-04 03:29:44 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-05-04 13:29:44 +0300 |
| commit | 0af61fe2f41048d66b0a973bbff056690446d3df (patch) | |
| tree | e8090981a10df6efc1d77ec0909b9f81508e1c8b /Python/symtable.c | |
| parent | ac7d5ba96eb780b13877456b118ff1183bc6c4b3 (diff) | |
| download | cpython-0af61fe2f41048d66b0a973bbff056690446d3df.tar.gz cpython-0af61fe2f41048d66b0a973bbff056690446d3df.zip | |
bpo-44172: Keep reference to original window in curses subwindow objects (GH-26226)
The X/Open curses specification[0] and ncurses documentation[1]
both state that subwindows must be deleted before the main window.
Deleting the windows in the wrong order causes a double-free with
NetBSD's curses implementation.
To fix this, keep track of the original window object in the subwindow
object, and keep a reference to the original for the lifetime of
the subwindow.
[0] https://pubs.opengroup.org/onlinepubs/7908799/xcurses/delwin.html
[1] https://invisible-island.net/ncurses/man/curs_window.3x.html
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Diffstat (limited to 'Python/symtable.c')
0 files changed, 0 insertions, 0 deletions