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Diffstat (limited to 'emacs/29.1/01_all_xdisp-segfault.patch')
-rw-r--r--emacs/29.1/01_all_xdisp-segfault.patch32
1 files changed, 32 insertions, 0 deletions
diff --git a/emacs/29.1/01_all_xdisp-segfault.patch b/emacs/29.1/01_all_xdisp-segfault.patch
new file mode 100644
index 0000000..835185b
--- /dev/null
+++ b/emacs/29.1/01_all_xdisp-segfault.patch
@@ -0,0 +1,32 @@
+Fix segmentation fault due to invalid mode-line-format
+Patch backported from master branch
+https://debbugs.gnu.org/64893
+
+commit 7ea3f39deec3d54914077455e70605a14eb7d200
+Author: Eli Zaretskii <eliz@gnu.org>
+Date: Thu Jul 27 15:34:38 2023 +0300
+
+ Avoid crashes due to invalid 'mode-line-format'
+
+ * src/xdisp.c (display_mode_element, redisplay_window_error):
+ Don't take XCAR of what can be Qnil. (Bug#64893)
+
+--- emacs-29.1/src/xdisp.c
++++ emacs-29.1/src/xdisp.c
+@@ -17601,6 +17601,7 @@ redisplay_window_error (Lisp_Object erro
+ if (max_redisplay_ticks > 0
+ && CONSP (error_data)
+ && EQ (XCAR (error_data), Qerror)
++ && CONSP (XCDR (error_data))
+ && STRINGP (XCAR (XCDR (error_data))))
+ Vdelayed_warnings_list = Fcons (list2 (XCAR (error_data),
+ XCAR (XCDR (error_data))),
+@@ -27091,7 +27092,7 @@ display_mode_element (struct it *it, int
+
+ oprops = Fcopy_sequence (oprops);
+ tem = props;
+- while (CONSP (tem))
++ while (CONSP (tem) && CONSP (XCDR (tem)))
+ {
+ oprops = plist_put (oprops, XCAR (tem),
+ XCAR (XCDR (tem)));