diff options
| author | ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com> | 2026-01-11 12:09:41 +0100 |
|---|---|---|
| committer | ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com> | 2026-01-11 12:09:41 +0100 |
| commit | 7b6a779fd3a911c25edf58efc36862c07202a5fa (patch) | |
| tree | 8d419b95e6ef083e21777c124ea5d4f9a06399e1 /src/Fl_Cairo.cxx | |
| parent | e59a5dc8044deaa71b089e040fde536310073cfd (diff) | |
Fix "Wayland: NULL pointer dereference in Fl::cairo_make_current()" (#1359)
Diffstat (limited to 'src/Fl_Cairo.cxx')
| -rw-r--r-- | src/Fl_Cairo.cxx | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/Fl_Cairo.cxx b/src/Fl_Cairo.cxx index c69af2c55..a5b471392 100644 --- a/src/Fl_Cairo.cxx +++ b/src/Fl_Cairo.cxx @@ -150,8 +150,8 @@ cairo_t *Fl::cairo_make_current(Fl_Window *wi) { #if defined(FLTK_USE_WAYLAND) if (fl_wl_display()) { // true means using wayland backend struct wld_window *xid = fl_wl_xid(wi); - if (!xid->buffer) - return NULL; // this may happen with GL windows + if (!xid || !xid->buffer) + return NULL; // this may happen with GL windows or if window is not shown cairo_ctxt = xid->buffer->draw_buffer.cairo_; Fl::Private::cairo_state_.cc(cairo_ctxt, false); return cairo_ctxt; |