[vim/vim] crash when borrowing statusline highlight in silent Ex mode (PR #20776)

[h_east]

Problem:  Vim crashes with a NULL pointer dereference when a status line is
          redrawn next to a vertical separator in silent Ex mode, where the
          screen cell arrays are not allocated.
Solution: Skip borrowing the vertical separator highlight when the screen is
          not allocated.

---

You can view, comment on, or merge this pull request online at:

  https://github.com/vim/vim/pull/20776

Commit Summary

• bc45d40 crash when borrowing statusline highlight in silent Ex mode

File Changes

(3 files)

• M src/drawscreen.c (4)
• A src/testdir/crash/poc_borrow_stl_vsep_hl (2)
• M src/testdir/test_crash.vim (6)

Patch Links:

• https://github.com/vim/vim/pull/20776.patch
• https://github.com/vim/vim/pull/20776.diff

—
Reply to this email directly, view it on GitHub, or unsubscribe.
Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS and Android. Download it today!
You are receiving this because you are subscribed to this thread.Message ID: <vim/vim/pull/20776@github.com>