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Prevent DoS attacks via requesting too many fallback fonts

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Kovid Goyal 2017-11-13 08:40:47 +05:30
parent a70f6405ac
commit ddc327b772
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1 changed files with 2 additions and 0 deletions
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kitty/fonts.c
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@ -279,6 +279,8 @@ fallback_font(Cell *cell) {
} }
} }
if (fallback_fonts_count > 100) { fprintf(stderr, "Too many fallback fonts\n"); return NULL; }
if (bold) base_font = italic ? &bi_font : &bold_font; if (bold) base_font = italic ? &bi_font : &bold_font;
else base_font = italic ? &italic_font : &medium_font; else base_font = italic ? &italic_font : &medium_font;
if (!base_font->face) base_font = &medium_font; if (!base_font->face) base_font = &medium_font;