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Code Issues Releases Activity

Avoid crashes due to invalid 'mode-line-format'

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* src/xdisp.c (display_mode_element, redisplay_window_error):
Don't take XCAR of what can be Qnil.  (Bug#64893)
This commit is contained in:
Eli Zaretskii 2023-07-27 15:34:38 +03:00
parent 184fc9b020
commit 7ea3f39dee
1 changed files with 2 additions and 1 deletions
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3
src/xdisp.c
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@ -17644,6 +17644,7 @@ redisplay_window_error (Lisp_Object error_data)
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))),
@ -27179,7 +27180,7 @@ display_mode_element (struct it *it, int depth, int field_width, int precision,
oprops = Fcopy_sequence (oprops);
tem = props;
while (CONSP (tem))
while (CONSP (tem) && CONSP (XCDR (tem)))
{
oprops = plist_put (oprops, XCAR (tem),
XCAR (XCDR (tem)));