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wmaker: fix crash for windows without WM_HINTS

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This patch is adding a guard before calling wm_hints->icon_pixmap.
Crash can be reproduced with decoration-less apps when disabling
"Emulate application icon" attribute.

Ref:

Program terminated with signal SIGSEGV, Segmentation fault.
806 if (!getSize(wwin->wm_hints->icon_pixmap, &w, &h, &d)) {
[Current thread is 1 (Thread 0x7ffff660ed40 (LWP 29297))]
This commit is contained in:
David Maciejak
2026-04-04 15:49:04 -04:00
committed by Carlos R. Mafra
parent 62e341b5cc
commit ee9fd77a56
1 changed files with 3 additions and 0 deletions
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3
src/icon.c
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@@ -803,6 +803,9 @@ RImage *get_rimage_icon_from_wm_hints(WIcon *icon)
wwin = icon->owner;
if (!wwin->wm_hints)
return NULL;
if (!getSize(wwin->wm_hints->icon_pixmap, &w, &h, &d)) {
icon->owner->wm_hints->flags &= ~IconPixmapHint;
return NULL;