Beginning with version 2.11.91 up to trunk:
In fcinit.c, the FcInitBringUptoDate function doesn't properly validate the return value for FcConfigGetCurrent() leading to a segfault when attempting to reference config->rescanInterval.
fc-list suffers from this problem and crashes as a result when not provided with a valid fontconfig file. Versions prior to 2.11.91 don't exhibit the same behavior.
mingw-w64 / gcc 4.92 / Windows 8.1 x64
diff --git a/src/fcinit.c b/src/fcinit.c
index db62c21..1315a52 100644
--- a/src/fcinit.c
+++ b/src/fcinit.c
@@ -209,6 +209,9 @@ FcInitBringUptoDate (void)
FcConfig *config = FcConfigGetCurrent ();
time_t now;
+ if (!config)
+ return FcFalse;
+
/*
* rescanInterval == 0 disables automatic up to date
*/
Matt Breedlove
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