src/fccache.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
New commits:
commit 2ed243f323e603ac917a236a48b468e9c523da35
Author: Akira TAGOH <akira@xxxxxxxxx>
Date: Tue Nov 14 20:55:24 2017 +0900
Validate cache more carefully
Reject caches when FcPattern isn't a constant.
This is usually unlikely to happen but reported.
I've decided to add more validation since this isn't reproducible
and easy to have a workaround rather than investigating 'why'.
https://bugs.freedesktop.org/show_bug.cgi?id=103237
diff --git a/src/fccache.c b/src/fccache.c
index 6f3c68a..c59ea19 100644
--- a/src/fccache.c
+++ b/src/fccache.c
@@ -646,7 +646,8 @@ FcCacheOffsetsValid (FcCache *cache)
(char *) font > end - sizeof (FcFontSet) ||
font->elts_offset < 0 ||
font->elts_offset > end - (char *) font ||
- font->num > (end - (char *) font - font->elts_offset) / sizeof (FcPatternElt))
+ font->num > (end - (char *) font - font->elts_offset) / sizeof (FcPatternElt) ||
+ !FcRefIsConst (&font->ref))
return FcFalse;
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