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wayland: Don't pass null string pointers to wl_cursor_theme_get_cursor

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The function calls strcmp internally without checking for a null string parameter, and calling strcmp with a null parameter is undefined behavior.

(cherry picked from commit f24216c2ba)
This commit is contained in:
Frank Praznik
2024-02-18 11:55:51 -05:00
parent c67f10e43f
commit dfb8241317
1 changed files with 1 additions and 1 deletions
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src/video/wayland/SDL_waylandmouse.c
+1 -1
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@@ -259,7 +259,7 @@ static SDL_bool wayland_get_system_cursor(SDL_VideoData *vdata, Wayland_CursorDa
cssname = SDL_GetCSSCursorName(cdata->system_cursor, &fallback_name); cssname = SDL_GetCSSCursorName(cdata->system_cursor, &fallback_name);
cursor = WAYLAND_wl_cursor_theme_get_cursor(theme, cssname); cursor = WAYLAND_wl_cursor_theme_get_cursor(theme, cssname);
if (!cursor) { if (!cursor && fallback_name) {
cursor = WAYLAND_wl_cursor_theme_get_cursor(theme, fallback_name); cursor = WAYLAND_wl_cursor_theme_get_cursor(theme, fallback_name);
} }