59 lines
2.1 KiB
Diff
59 lines
2.1 KiB
Diff
From fd5511f24b7269195a7083f409244e9787c705dc Mon Sep 17 00:00:00 2001
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From: Christian Persch <chpe@src.gnome.org>
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Date: Sun, 2 Jun 2024 19:13:15 +0200
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Subject: [PATCH] emulation: Restrict resize request to sane numbers
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Fixes: https://gitlab.gnome.org/GNOME/vte/-/issues/2786
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---
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src/vteseq.cc | 20 ++++++++++++--------
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1 file changed, 12 insertions(+), 8 deletions(-)
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diff --git a/src/vteseq.cc b/src/vteseq.cc
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index 2430054c..225c6a59 100644
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--- a/src/vteseq.cc
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+++ b/src/vteseq.cc
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@@ -216,9 +216,18 @@ Terminal::emit_bell()
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/* Emit a "resize-window" signal. (Grid size.) */
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void
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Terminal::emit_resize_window(guint columns,
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- guint rows)
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-{
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- _vte_debug_print(VTE_DEBUG_SIGNALS, "Emitting `resize-window'.\n");
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+ guint rows)
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+{
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+ // Ignore resizes with excessive number of rows or columns,
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+ // see https://gitlab.gnome.org/GNOME/vte/-/issues/2786
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+ if (columns < VTE_MIN_GRID_WIDTH ||
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+ columns > 511 ||
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+ rows < VTE_MIN_GRID_HEIGHT ||
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+ rows > 511)
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+ return;
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+
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+ _vte_debug_print(VTE_DEBUG_SIGNALS, "Emitting `resize-window' %d columns %d rows.\n",
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+ columns, rows);
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g_signal_emit(m_terminal, signals[SIGNAL_RESIZE_WINDOW], 0, columns, rows);
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}
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@@ -4702,8 +4711,6 @@ Terminal::DECSLPP(vte::parser::Sequence const& seq)
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else if (param < 24)
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return;
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- _vte_debug_print(VTE_DEBUG_EMULATION, "Resizing to %d rows.\n", param);
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-
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emit_resize_window(m_column_count, param);
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}
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@@ -9312,9 +9319,6 @@ Terminal::XTERM_WM(vte::parser::Sequence const& seq)
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seq.collect(1, {&height, &width});
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if (width != -1 && height != -1) {
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- _vte_debug_print(VTE_DEBUG_EMULATION,
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- "Resizing window to %d columns, %d rows.\n",
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- width, height);
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emit_resize_window(width, height);
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}
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break;
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--
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2.45.0
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